Originally Posted by tightie
So.. Who has the mastermind x pipe and has actually done a independent dyno?
I slapped one on and my butt dyno (just driving around) makes me feel the car has lost low end torque and got slower..
I have the catless with a resonator.
I tend to recall reading a post about a loss of torque...heads up on that during searches.
Also member onnex had the master mind before going full Evo.