- Thread starter
- #301
Back to the drawing board on the exhaust system. Kudos to AutoZone for taking the front Bosal Y-pipe/cat and rear resonator back after so long. After reading various threads since purchasing and my own comparisons there were multiple issues that I didn’t want. The y-pipe bottles down into a smaller pipe than stock and like other threads didn’t line up to the exhaust manifolds. I did like the Tacoma style Cat that was smooth without sharp edges. I recently picked up the Bosal muffler and discovered it has donut gasket grooved flanges like stock when the other Bosal pieces didn’t. The muffler though bottled down to 2 inch possibly even smaller depending how the weld was done. Best I can tell the exhaust system was originally designed as a 2 1/4” system. I plan on returning it as well. I had picked it up from Advance.
The rear resonator was probably the best piece since it doesn’t have the factory crimp above the rear axle. But the resonator is a different design. Not sure it is much more than expanded pipe. All in all the quality control seemed lacking. I think I want to go stainless out of the motor at least.
The rear resonator was probably the best piece since it doesn’t have the factory crimp above the rear axle. But the resonator is a different design. Not sure it is much more than expanded pipe. All in all the quality control seemed lacking. I think I want to go stainless out of the motor at least.