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πŸ”§ dorman 674-940 exhaust manifold: a perfect fit for your chevrolet / gmc models logo

πŸ”§ Dorman 674-940 Exhaust Manifold: A Perfect Fit for Your Chevrolet / GMC Models Review

4

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Excellent

Revainrating 5 out of 5Β Β 
RatingΒ 
5.0
🌫️ Exhaust & Emissions, πŸ› οΈ Replacement Parts

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Description of πŸ”§ Dorman 674-940 Exhaust Manifold: A Perfect Fit for Your Chevrolet / GMC Models

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 garage tool.

Reviews

Global ratings 4
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Type of review

Revainrating 5 out of 5

Excellent very satisfied: exhaust and emissions

Concerned aftermarket purchase but the OEM part snapped and of course it fits like an OEM and works great. Equinox 2012. Excellent value for money and quality. It takes a lot of trouble to remove and install, you never see a single head flange.

Pros
  • Replacement parts
Cons
  • Out of style

Revainrating 5 out of 5

Save time and buy a new Upstrem Sensor 02.

Manifold, Manifold Gasket and Gasket/Converter O-ring, they all fit together. It's a good idea to buy a PCV valve and air filter as these are easy to replace once you've removed all the parts needed to access the manifold. Buy a top O2 sensor to save time, the sensor couldn't be removed and broke. Some are made in China but appear to be of decent quality.

Pros
  • Automotive
Cons
  • I vaguely remember

Revainrating 5 out of 5

2.4L GM ecotec exhaust manifold

Well packaged, comes with exhaust flange nuts and heat shield screw, manifold to cylinder head and flange gasket. I read many reviews that replaced headers cracked after a short time so I carefully broke the header. By this I mean that after the installation I made sure everything was ok and let the engine run for about 1 minute and then shut it off. I let it cool until cool to the touch, about 30 minutes. I did this a few more times, gradually increasing the length, and then circling the area,

Pros
  • Manifold
Cons
  • Almost everything included