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Review on Dorman 674-659 Exhaust Manifold with Integrated Catalytic Converter: Non-CARB Compliant | Best Deals by Jeremy Byard

Revainrating 5 out of 5

Excellent product suitable for catalytic converters

Six months have passed since the installation and everything is fine. Maybe with all the necessary parts and it was easy to fit a stall. Word to the wise, installing them yourself is easy. Removing the old one is a nightmare. You need at least 4 hours of operation of the exhaust system. bolt cutting and so on. I had to widen the holes on the new one a bit to get it a perfect fit, but it was very small. But with confidence.

Pros
  • Everything is ok!
Cons
  • Not everything fits