13 best exhaust manifold coating

Exhaust manifold coating is a process applied to the exhaust manifold of a vehicle, primarily for performance and durability purposes. The exhaust manifold is a critical component of the vehicle's exhaust system, responsible for collecting exhaust gases from the engine's cylinders and directing them into the exhaust pipe. Here's what you need to know about exhaust manifold coating:

  1. Purpose of Coating:

    • The primary purpose of coating the exhaust manifold is to improve its performance and longevity. This is achieved through various types of coatings that provide several benefits.
  2. Heat Insulation:

    • One common type of coating applied to exhaust manifolds is a heat-resistant, insulating coating. This coating helps in retaining heat within the exhaust manifold, allowing exhaust gases to maintain higher temperatures as they exit the engine. This can improve exhaust flow and reduce exhaust gas cooling, which can be beneficial for engine performance.
  3. Corrosion Resistance:

    • Exhaust manifolds are exposed to high-temperature exhaust gases and can be prone to corrosion over time. Coating the manifold with a corrosion-resistant material helps extend its lifespan and prevents rust and deterioration.
  4. Reduced Heat Transfer:

    • Coatings on exhaust manifolds can also reduce heat transfer to other engine components, such as nearby sensors or wiring. This can help protect sensitive engine parts from excessive heat and potential damage.
  5. Improved Performance:

    • By retaining heat within the exhaust manifold and optimizing exhaust gas flow, coated manifolds can contribute to improved engine performance. This may result in enhanced horsepower and torque, as well as potentially better fuel efficiency.
  6. Types of Coatings:

    • There are various types of coatings used on exhaust manifolds, including ceramic coatings, thermal barrier coatings, and high-temperature paints. Each type has its specific benefits and applications.
  7. Professional Application:

    • Coating an exhaust manifold is typically done by professionals or specialized shops with the necessary equipment and expertise. The manifold must be properly cleaned and prepared before applying the coating to ensure its effectiveness.
  8. Aftermarket Options:

    • Some automotive enthusiasts and performance-oriented drivers choose to have their exhaust manifolds coated as an aftermarket modification. This can be part of a broader effort to improve engine performance and overall vehicle efficiency.

In summary, exhaust manifold coating is a process that involves applying specialized coatings to the exhaust manifold of a vehicle.This coating serves to improve heat insulation, corrosion resistance, and overall performance, making it a popular choice among automotive enthusiasts and those looking to enhance their vehicle's durability and efficiency. Properly coated exhaust manifolds can contribute to better engine performance and a longer lifespan for this critical component of the exhaust system.

Below you can find our editor's choice of the best exhaust manifold coating on the market
  

Eastwood Factory Finish Gray High Temperature Durability Coating 1 Pint

Based on 32 reviews Check latest price
  • Replicate The Look Of Cast Iron On Manifolds, Headers
  • Protects To 1400°F
  • Available In Pints Or Aerosol
  • Brush Or Spray-On Application
  • Easy To Apply And Will Provide Years Of Durability And Great Looks

User questions & answers

Question: The description says aerosol but the catalog number and picture indicate it's the brush can. Which is it
Answer: The type I have is brush on. Came in a can as picuured.
Question: What temperature is required for curing,I want to use this on Harley davidson clyinders they don't get as hot as an exhaust pipe
Answer: You can idle the vehicle for 15 minutes and that will cure the paint
Question: Infiniti qx50 2014. Has universal exhaust system rust. Wii this adhere to the already rusted exhaust components? Some sanding was done
Answer: I have a 2015 Q50 hybrid Sport and I have the same problem, rust all over the exhaust system, and this was a California car. I am going to try to use Rust-Oleum rust reformer which turns rust black and then you can paint over it. I want to try it in a few spots and see how well it holds up to the heat of the exhaust system and if it looks good after week or so I'm going to go ahead and paint over the Rust-Oleum rust reformer with this product. I will post an update hear when available.
Question: Could I use this on a wood stove
Answer: I can’t see why not. Though I expect it might look slightly discolored if it gets terribly hot. Should perform better than high temp spray paint at any rate. Be sure to ventilate the space the first few times you use the stove. This paint uses heat to cure.

POR-15 High Temperature Heat Resistant Paint,Gray,8 Fluid Ounce

POR-15

Based on 566 reviews Check latest price

Product description

POR-15 High Temp heat resistant paint is designed for use on metal surfaces subject to elevated temperatures. The coating is designed to protect steel that is exposed to heat ranges up to 1200°F. This coating system provides excellent weathering. Resists mild industrial fumes and properly cured films will resist thermal shock.

  • Can be used on manifolds
  • Can be used on headers
  • Can be used on exhausts
  • Can be used on stacks
  • Withstands temperatures up to 1200 degrees F

User questions & answers

Question: Should I use metal prep on exhaust pipes before painting with high temp paint
Answer: This is what my husband said: yes. Or, he can sand the rust away, but the surface should always be paint-ready.
Question: Can I use an exhaust manifold without having to use a high temperature primer
Answer: Yes, I did and it looks as good 6 months later as when I brushed it on. Prep the manifold with an abrasive 3M pad or similar product before coating.
Question: Wii it stick to stoneWalled this work on a couple of stones behind a fireplace
Answer: This product is designed for an automotive application. I don't think that it will work on a fireplace.
Question: can i use this on exterior wood stove
Answer: I would say yes as I use it on exhaust manifolds and it holds up well.

Product features

POR-15 High Temp Heat Resistant Paint

POR-15 High Temp paint is capable of withstanding extreme temperatures up to 1200°F / 648.8°C and will resist cracking, chipping, and peeling. It is also extremely weather, salt and moisture resistant. POR-15 High Temp is the most uniform heat-resistant coating available anywhere, and will maintain rich, brilliant colors without burning off or discoloring. Can be used on all cars, domestic or foreign. Meets or exceeds properties and requirements of MIL-C-13370.

Comes in three colors: Flat Black, Manifold Gray, and Aluminum

Available in Liquid or Aerosol spray

* Replaces POR-20, Black Velvet, Fire Seal 2000, & Factory Manifold Gray

Eastwood High Temperature Resistant Factory Gray Coating Aerosol 11.75oz

Based on 50 reviews Check latest price
  • Replicate The Look Of Cast Iron On Manifolds
  • Temperature Resistant Up To 1400 Degrees
  • Easy Brush Or Spray-On Application
  • Each Can Is Sufficient To Coat 2 Standard Cast Iron Manifolds Or About 6 Sq Ft
  • 2 Cans Recommended For Header Systems

User questions & answers

Question: Can this be used on a muffler
Answer: Most likely. I used it on exhaust headers that get up to 1000 degrees.
Question: what colors are available
Answer: The ones you chose to order for your project.
Question: How well does this work if I were to spray it directly onto the engine
Answer: If the engine is clean it will work great
Question: Can I use this for a fire pit? inside and outside of it
Answer: This item is particularly made for automobiles and unfortunately, we we haven't tested it for fire pits.

Eastwood Durable Resistant Matte Silver Finish Coating Aerosol Pints 11.75 Oz Heat Resistant up to 1400 Degree

Based on 23 reviews Check latest price
  • Provides A Brilliant Matte Silver Sheen
  • Temperature Resistant Up To 1400 Degrees
  • "Easy Brush Or Spray-On Application, Aerosol covers approximately 6 sq ft "
  • Each Can Is Sufficient To Coat 2 Standard Cast Iron Manifolds Or About 6 Sq Ft
  • 2 Cans Recommended For Header Systems, One pint covers approximately 12 sq ft

User questions & answers

Question: Could this be used over well sanded/cleaned Cherry Bomb glasspacks? They appear to be powder coated red
Answer: It works for what ever exhaust you have but it might be difficult to wrap it unless you have the exhaust unmounted. Also I would recommend applying the coating to the pipe befor wrapping rather then after per the instructions.
Question: Does this protect against rust
Answer: Yes, of course it's heat-proof. It goes around your pipes which, depending on what part you're talking about, can get over 1000 degrees F.
Question: Can I apply the 2K clear on top of this paint
Answer: No on the silicone, but a painted wrapping may.
Question: Can I use this to coat a plastic diffuser that partially surrounds my exhaust tips with 1/2" gap in between to give the plastic some extra protection
Answer: My wrap was titanium before spraying. The coating protects the wrap, and adds a flat black color to it. After 4 months, some of the black has rubbed off, showing the titanium and giving the scoot an older vintage look.

Eastwood High Temperature Resistant Satin Black Coating Aerosol 11.75 oz

Based on 37 reviews Check latest price
  • Produces A Custom Look For Manifolds, Headers
  • Temperature Resistant Up To 1400 Degrees
  • Easy Brush Or Spray-On Application
  • Each Can Is Sufficient To Coat 2 Standard Cast Iron Manifolds Or About 6 Sq Ft
  • 2 Cans Recommended For Header Systems

User questions & answers

Question: Does it need a primer for bad chrome exhaust headers on a motorcycle
Answer: I didnt use primer because I I bought a wrecked (Bassani RR) pipe and just needed to cover the damage. Rust has started to show through after a year, so I used CLR and touched it up. If I did it again I would sand better and use VHT Flame Proof primer, ceramic, and clear. VHT Flame Proof withstands higher temps. But I wasn't painting chrome... you'll need all the help you can get (sanding, primer) for it to stick.
Question: Is alot smoke normal on first start
Answer: Yes, this is normal.
Question: How is the finish after curing
Answer: This product gives a Satin Black finish.
Question: can you use this to paint exhaust pipes /mufflers
Answer: You should be fine. It holds up pretty well with higher temps.

VHT SP998 FlameProof Coating Cast Iron Paint Can - 11 oz.

VHT

Based on 963 reviews Check latest price

Product description

VHT Flame Proof Coating SP998 Cast Iron is the color coat for the three part multi high performance coating system. VHT Flame Proof Coating will extend the life of any surface exposed to extremely high temperatures. This unique coating is a matte finish, silicone ceramic base widely used by the automotive industry on exhaust systems, and the aerospace industry for jet engines, re-entry vehicles and other high temperature applications. VHT Flameproof Coating will withstand temperatures up to 2000 degrees Fahrenheit (1093 degrees Celsius) and is ideal for use on headers, exhaust systems, or wherever an extreme temperature coating is needed. VHT provides a multi high performance coating system for the ultimate protection and quality. The system of primer, paint and clear coat finish is applied with a curing process to insure top performance. VHT Flameproof coating only attains its unique properties after correct curing. Curing can be done on the vehicle or off the vehicle by using the following steps. ON the vehicle, paint must be completely dry, run engine at idle for 10 minutes, cool for 20 minutes, run at idle for 20 minutes, cool for 20 minutes, run at normal operating conditions for 30 minutes. OFF the vehicle, paint must be completely dry before curing, heat to 250 degrees for 30 minutes, cool for 30 minutes, heat to 400 degrees for 30 minutes, cool for 30 minutes, heat to 650 degrees for 30 minutes. (CAUTION: Do not exceed the temperature of the least heat tolerant component or the base metal.) Complete application and curing instructions are also printed on every can.

  • Flame proof coating extends life of high heat surfaces
  • Matte finish ceramic silicone base widely used on automotive exhaust
  • Best when used with primer color paint and clear coat process
  • Withstands temperatures up to 2000 degrees when cured properly
  • This item is not for sale in Catalina Island

User questions & answers

Question: Will this adhere to chrome motorcycle exhaust pipes
Answer: No! will not stick to chrome..best bet is a Jet Hot Coating from a powder coater.. This stuff does not hold up well under high heat conditions, will flake off at the hot bends of pipes
Question: For inside tubing on exaust manifold, is primer application sufficient for protection without , color, VHT paint coatings
Answer: I think it is. I have used this primer ONLY on the exhaust of one of our cars. Curing is tricky. Have to follow istructions on the primer can.
Question: Can I use this on a firepit to prevent rust
Answer: Yes but any paint will do that as long as you clean the rust off . All your doing is keeping the water and air from getting to the raw metal . The high tempPaint has to be bake in an oven to 600*F
Question: can this be used for arts and crafts to and not just cars
Answer: I don't see why you couldn't use this for other applications but if your not going to be heating your crafts to over 1000* why would you need a high heat clear coat.

Product features

VHT flameproof Coating

VHT flameproof Coating will renew and extend the life of any surface exposed to extremely high temperatures. This unique coating is widely used by the automotive industry on exhaust systems, and the aerospace industry for jet engines, re-entry vehicles and other high temperature paint applications.

POR-15 44218 Gray High Temperature Paint Manifold - 15 fl. oz.

POR-15

Based on 160 reviews Check latest price

Product description

POR-15 High Temp paint is capable of withstanding extreme temperatures up to 1200°F / 648.8°C and will resist cracking, chipping, and peeling. It is also extremely weather, salt and moisture resistant. POR-15 High Temp is the most uniform heat-resistant coating available anywhere, and will maintain rich, brilliant colors without burning off or discoloring. Can be used on all cars, domestic or foreign. Meets or exceeds properties and requirements of MIL-C-13370. Replaces POR-20, Black Velvet, Fire Seal 2000, and Factory Manifold Gray

  • High TEMP PAINT MANIFOLD GRAY (POR-44218)
  • Flash Point: 41.00 Degrees Celsius

User questions & answers

Question: Is this suitable for going directly onto fibreglass (heat shield
Answer: If the surface is prepared properly, it should work.
Question: Bottom of my metal fire pit is rusty. Can I prepare the metal and spray it with this paint? Food is not cooked on the fire pit
Answer: You can paint the fire pit with the high temp paint. Go to POR-15's website and follow the instructions for prepping the surface applying the paint and curing the paint afterward.
Question: Is this gasoline restistant? I want touse it on a carburator
Answer: No this is not gasoline resistant.
Question: Do I need to prime the headers first
Answer: They recommend that you clean/degrease thoroughly and prime before painting. I cleaned/degreased, but did not prime. So far it is working fine.

Product features

POR-15 High Temp Heat Resistant Paint

POR-15 High Temp paint is capable of withstanding extreme temperatures up to 1200°F / 648.8°C and will resist cracking, chipping, and peeling. It is also extremely weather, salt and moisture resistant. POR-15 High Temp is the most uniform heat-resistant coating available anywhere, and will maintain rich, brilliant colors without burning off or discoloring. Can be used on all cars, domestic or foreign. Meets or exceeds properties and requirements of MIL-C-13370.

Comes in three colors: Flat Black, Manifold Gray, and Aluminum

Available in Liquid or Aerosol spray

* Replaces POR-20, Black Velvet, Fire Seal 2000, & Factory Manifold Gray

Dorman 674-909 Driver Side Exhaust Manifold for Select Chrysler / Dodge / Mitsubishi Models

Dorman

Based on 45 reviews Check latest price

Product description

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

  • Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction - durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair - includes all necessary gaskets and downpipe hardware
  • Trustworthy design - built by industry leader in aftermarket manifolds
  • Ensure fit – to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage

User questions & answers

Question: Do this come with the 8 bolts as well
Answer: No it don't. It only comes with with the 2 for the y pipe and a gasket
Question: Gasket.. generic but felpro says "shiny" to manifold which if true with this one would be impossible with gasket provided...How Did You Install
Answer: Not sure what you mean by "Shiny to manifold". I can tell you that the manifold they sent was about a half-inch longer at the point it connects to the tailpipe so I could not even use it. The holes lined-up but the end made it impossible toconnect to the tailpipe. Returned the manifold for a refund and ended-up having to use my old manifold. My manifold was not cracked... but the bolts had snapped-off. Was able to use the gasket they sent. I have an 2004 Dodge Durango... 4.7 RWD.
Question: is this for the right side or the left side of the engine
Answer: 674-909 is for the left driver's side.

Product features

Why Do Original Exhaust Manifolds Fail?

Exhaust manifolds carry exhaust gases from the engine to the exhaust system, and therefore have to withstand extreme temperatures. This will wear on any part, but poor design and inferior materials will cause these parts to fail faster.

As exahust manifolds wear out, they can crack and leak. As a result, the engine may become noisier, vehicle performance may suffer, and other parts may start failing as well if exposed to intense heat escaping from the cracked manifold.

Why Are Dorman Exhaust Manifolds Better?

- High-quality metal construction protects against warping or cracking.

- Leak-resistant designs provide long-lasting performance.

- Detailed inspections ensure product standards.

Design Engineering 010330 Motorcycle Exhaust Pipe Wrap Kit with Hi-Temp Silicone Coating Spray - Black Wrap / Black Spray

Design Engineering

Based on 143 reviews Check latest price

Product description

The DEI Motorcycle Exhaust Pipe Wrap Kit is a simple and effective way to control heat, protect against serious leg burns and improve performance. DEI Pipe Wrap prevents burns, improves exhause flow for better performance, increases horsepower, and protects against abrasions, hot oil spills, road grime, and more. The Kit contains everything needed to wrap a set of pipes all in one convenient package. Each kit includes two 2" x 15 ft rolls of exhaust wrap, eight 8" stainless steel locking ties, and four 14" stainless steel locking ties to secure wrap, and Hi-Temp silicone coating spray that penetrates, seals, protects and preserves wrap. A proprietary coating is applied to all DEI wraps to act as a bonding agent and to increase durability levels under extreme heat. Note about Titanium Exhaust Systems: DEI does NOT recommend wrapping Titanium exhausts. The alloys used in the production of titanium exhaust systems tend to be thin and are designed to dissipate heat quickly. By wrapping the exhaust, the additional heat can make the titanium alloy turn brittle and prone to premature cracking. DEI recommends using alternatives such as their flexible heat shields when seeking to reduce the heat on titanium exhaust systems.

  • A simple and effective way to control heat, protect against serious leg burns and improve performance
  • Improve exhaust flow for better performance and increase horsepower
  • Withstands direct continuous heat up to 1200 degrees Fahrenheit
  • Prevents burns and protects against abrasions, hot oil spills, road grime and more
  • Kit includes two rolls of 2" x 15 ft exhaust wrap, 1 can of Hi-Temp silicone coating spray, eight 8" stainless steel locking ties, and four 14" stainless steel locking ties

User questions & answers

Question: Is this only for motorcycle exhaust or would it work on my 66 mustang. I need it just to cover part of the pipe which is near the gas tank
Answer: It should work for a mold. But if make repeated forms in the mold you will need to teapply at certain intervals. And material not be above 1500 degrees.
Question: what the wrap made of, is this heat or fire proof
Answer: Yes it can it will withstand temps up to I believe 1500 degrees but it depends as to how close you get to actual exhaust head. I think you should be fine using this on exhaust pipes with no problems but I do recommend at least two to three coats. Hope this helps good luck.
Question: Does the silicone get on clothing after it is dried then heated
Answer: This would not work as insulation as it is only paint. It is a paint that maintains its integrity in high heat environments .
Question: Is the wrap black or titanium
Answer: I bought the 25 gallon atv spraying system from tractor supply. It came with this tank. It was not extra. I had to return it because one of the connections failed and tractor supply could not supply a new 25 gallon tank. So I bought the 15 gallon tank on Amazon and it also came with this small tank in the box as a package deal. It was not an extra item either time period

Product features

Motorcycle Exhaust Pipe Wrap Kit

The DEI Motorcycle Exhaust Pipe Wrap Kit is a simple and effective way to control heat, protect against serious leg burns and improve performance. DEI Pipe Wrap prevents burns, improves exhaust flow for better performance, increases horsepower, and protects against abrasions, hot oil spills, road grime, and more. The Kit contains everything needed to wrap a set of pipes all in one convenient package. Each kit includes two 2" x 15 ft rolls of exhaust wrap, eight 8" stainless steel locking ties, and four 14" stainless steel locking ties to secure wrap, and Hi-Temp silicone coating spray that penetrates, seals, protects and preserves wrap.

Wrap Exhaust Pipe

Design Engineering Pipe Wrap prevents burns, improves exhause flow for better performance, increases horsepower, and protects against abrasions, hot oil spills, road grime, and more.

Kit includes two rolls of 2" x 15 ft black or tan exhaust wrap.

Secure the Ends

Design Engineering stainless steel Locking Ties are the perfect way to fasten exhaust wrap for a easy, clean and professional installation. Made from 316 stainless steel and self locking, just like cable or zip ties.

Kit includes eight 8" stainless steel locking ties, and four 14" stainless steel locking ties.

Seal and Protect

The High Temperature (HT) Silicone Coating provides lasting protection for any hot surface up to 1500 degrees. DEI recommends the use of this coating with their exhaust wrap because it seals the material and provides lasting protection from oil, dirt and road grime.

Kit includes one can of white, black, or alluminum Hi-Temp silicone coating spray.

Ruien 16PCs Diesel Exhaust Manifold Bolt Kit Compatible with Compatible withd Powerstroke F250 F350 7.3L Diesel Engine 1994-2003

Based on 31 reviews Check latest price

Product description

Specifications:

Features:

- Direct Replacement, improve car performance

- High Quilty Aftermarket Built To Exceed OEM Spec

- Made of iron with good ductility, high temperature resistance

Suitable model:For Ford 7.3L F250 F350 Diesel Engine 1994-2003

Material:Iron

Color:Black.

Package Include:

16 * Exhaust Manifold Bolts

Note:

Professional Installation is Highly Recommended

No Instruction Included

  • → [ Fit for ]:1994-2003 Ford Powerstroke F250 F350 7.3L Diesel
  • → [ Superior Material ]: Made of iron with good ductility, high temperature resistance
  • → [ Direct Replacement ]: Easy to install, direct replace the old rusted bolts, improve car performance
  • → [ High Quilty ]: Aftermarket Built To Exceed OEM Spec
  • → [ Package Include ]: 16 pcs exhaust manifold bolts, as shown in the picture

User questions & answers

Question: Do these come with nuts too
Answer: These are tho bolts that hold the manifold to the heads there is not supposed to be nuts with them.

ATP Automotive Graywerks 101361 Exhaust Manifold

ATP

Based on 15 reviews Check latest price

Product description

ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original part’s specifications, to ensure it will install and perform like intended. This design is manufactured with high grade metals best suited for that application, from grey-iron to more advanced ductile and stainless steel applications. Each unit is machine finished to guarantee flanges are perfectly flat, mount evenly and do not leak. Commonly needed upper and lower gaskets, along with lower flange hardware are included (along with heatshields and plugs if needed for the particular application.) These manifolds are backed by ATP’s limited lifetime warranty.

  • Manufactured to OE design ensuring manifold will line up and flow like the original unit
  • High grade metallurgy resists fatigue cracking and breakage
  • Precision machine finished providing smooth installation and leak free performance
  • Upper and lower flange gaskets along with lower flange hardware are included (Heat shields and plugs are included where needed)
  • Industry Leading Limited Lifetime Warranty

Product features

Cast to OE Design

Ensures manifold will line up and flow like the original unit.

Fit: Dimensionally same as original for trouble-free installation.

Flow: Provides optimal engine performance.

Precision Machine Finished

Flanges machined flat, holes drilled and tapped as required. Ensuring smooth installation and leak free performance.

High Grade Metallurgy

Manufactured with OE specified steel to resist fatigue, cracking and breakage.

Offers a durable, long lasting replacement.

Include Gaskets and Hardware

The commonly replaced upper and lower flange gaskets, along with lower flange hardware are included. Heat shields and plugs are included where needed.

ATP Graywerks Limited Lifetime Warranty

ATP warrants, to our direct purchaser only, any products sold by us to be free from defects in material and workmanship under normal use (no off-road damage or racing use).

Our obligation under this warranty is expressly conditional on proper installation of the part and normal operation of the vehicle.

Dorman 03413 Exhaust Manifold Hardware Kit for Select Models

Dorman

Based on 413 reviews Check latest price

Product description

Dorman's Exhaust Manifold Hardware Kit provides you with the proper studs, bolts, and nuts for replacing your manifold. Save time and energy by having the right hardware on hand when you need it.

  • Direct replacement for a proper fit every time
  • Durable steel construction
  • Repair kit helps to secure exhaust manifold to the vehicle engine head
  • Manufactured to strict engineering quality standards
  • Ensure fit – to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage

User questions & answers

Question: will this work on 2005 4.0 v6 mustang
Answer: Sorry Dorman doesn't offer one for this vehicle.
Question: Will this work on a new body style 2007 gmc sierra 5.3 vin j
Answer: Yes this will work on this.
Question: What is the length of these bolts? Is it 30 millimeters
Answer: Yes. The package says they are Grade 10.9, thread pitch m8-1.25, length 30mm.
Question: What is the size of this bolts
Answer: It has been a bit since I replaced mine but I am pretty sure they were 10mm.

Product features

Dorman’s HELP! line has been helping auto repair professionals and vehicle owners for more than 30 years.

Keen Parts Calyx Exhaust Manifold Dressing

Based on 13 reviews Check latest price

Product description

Calyx manifold dressing is a simple process that keeps your vehicle's exhaust manifold looking new- with no ugly rust. You just put a lot of time and money restoring your engine compartment to look like brand new. Keep it that way with Calyx!

  • Keeps your exhaust manifold looking like new!
  • Simple application process.
  • No dangerous chemicals!

User questions & answers

Question: Is this safe to use on a turbine housing
Answer: I would think that would be OK. My use of it is on a cast iron exhaust manifold. The product is a bit like a waxy/greasy layer that limits oxidation.

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