Skip the auto shop - Our mechanics make house calls

How to Buy a Good Quality Exhaust Manifold

Good Quality Exhaust Manifold

The exhaust manifold bolts to the cylinder head of the engine and pulls exhaust gases from the individual ports; combining them into one outlet to flow back into the remainder of the exhaust system. Exhaust fumes are sneaky, and without the support of the exhaust manifold, can leak back into the passenger area of the vehicle and cause individuals who are sitting or riding within the car or truck to suffer from inhaling the toxic gases.

Most vehicles have an exhaust manifold that was manufactured out of cast iron, although tubular and stainless steel are also prime ways that these parts are created. You might even find a catalytic converter that has been incorporated as a part of the exhaust manifold. Your exhaust system goes all the way back to the tailpipe, and one key place that leaks can develop where the cylinder head matches up to the exhaust manifold.

Leaks in these areas often go undetected for a period of time until the shear stress on the exhaust manifold gasket causes a significant failure – this happens a lot when small leaks expand and grow. Cracking is often a problem on the exhaust manifold due to thinner castings that were utilized in order to reduce overall weight.

How to make sure you’re getting a good quality exhaust manifold:

  • Look for a thicker casting: Thicker casting will help maintain the strength of the overall manifold housing and gasket through all the different stressors that are applied to the parts.

  • Careful with remanufactured parts: You want to be sure the “ball and socket” mating point between the head pipe and the manifold are all strong and secure and if you do consider remanufactured parts – that there is no obvious wear on the parts. Look for cracks or damage in the exhaust manifold overall, or where the manifold housing and the resonator and converter join together. Also check the hump in the exhaust pipe where it stretches to cover the rear axle.

Replacing your exhaust manifold can save you not only money, but it can also save you from some incredibly toxic fumes that you and your family could be in danger of inhaling.

YourMechanic supplies top-quality exhaust manifolds to our certified mobile technicians. We can also install an exhaust manifold that you've purchased. Click here to get a quote and more information on exhaust manifold replacement.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: I have a 1998 Caddy DeVille, has original muffler and catalytic converter. had to be tweaked to pass CA smog, replace both?

Hey Pete, thanks for writing in. The replacements have more to do with what is actually wrong with the vehicle. If they have been modified illegally, then the answer is an automatic yes. Not only does it cause issues with...

Q: White smoke coming out of car

Hello. Depending on what the smoke looks like and also depending on what fluids you are losing would help me to determine the problem. If the smoke has a blue cast to it then it may be burning oil. If...

Q: Are Harmful Emissions Reduced by a Car's Exhaust System?

The automobile exhaust system has been around as long as the car itself. The purpose of the original exhaust system was to divert gases from the the combustion process away from the engine and operator. The purpose of today's exhaust...