Nevada City Sparky
Jeeper
- Location
- Nevada City, CA
I've posted my experience in a couple of other threads, but felt the subject deserved its own thread as a warning to Renix owners in search of a manifold.
DO NOT BUY DORMAN EXHAUT MANIFOLDS
I have gone through 4 Manifolds from Dorman in the last week trying to eliminate my manifold gasket problem. Everyone the NAPA dealer received was out of spec and warped to varying degrees.
We finally found one that was warped only .03 (spec is .017). After taking it home and fitting it up, I realized an ear needed a bit of grinding to clear a bolt. No problem, a little grinding took care of that issue, and I was able to flatten the manifold on a sheet of plate glass with 220 sandpaper on it. All was well I thought.
Until I tried to install it. The boss for installing the pipe between intake and exhaust was off by 5/8".
NAPA gave my money back and I have a dealer manifold coming.
So, let this be a warning: Dorman headers (at least this current batch) have SERIOUS QC issues. Besides the above mentioned problems, you could see lots of voids and pits in the steel for the flanges, not really giving me the warm fuzzies about their ability to hold a seal.
DO NOT BUY DORMAN EXHAUT MANIFOLDS
I have gone through 4 Manifolds from Dorman in the last week trying to eliminate my manifold gasket problem. Everyone the NAPA dealer received was out of spec and warped to varying degrees.
We finally found one that was warped only .03 (spec is .017). After taking it home and fitting it up, I realized an ear needed a bit of grinding to clear a bolt. No problem, a little grinding took care of that issue, and I was able to flatten the manifold on a sheet of plate glass with 220 sandpaper on it. All was well I thought.
Until I tried to install it. The boss for installing the pipe between intake and exhaust was off by 5/8".
NAPA gave my money back and I have a dealer manifold coming.
So, let this be a warning: Dorman headers (at least this current batch) have SERIOUS QC issues. Besides the above mentioned problems, you could see lots of voids and pits in the steel for the flanges, not really giving me the warm fuzzies about their ability to hold a seal.