Still confused Axel back Vs Cat back
Hey folks, New member here and I apologize if i'm pickin an old scab, but please enlighten me for I know ya'll know you stuff. Here goes: If I want to keep my cats, other than buying better flow cats, whats wrong with my stock H pipe and just doing an axel back, or are the benefits of high flow cats and and a better mid pipe worth the $$$, from what I think i've learned is there is a minimal gain in hp with just axel back set up, but dollar for dollar is the added hp worth a cat back system, or are those gains minimal as well? Or does the majority of all this exhaust stuff just basically break down to sound?
2007 Tungsten GT