Hey guys can someone tell me which cat back exhaust system will give me the most gains in hp and torque? 2006 mazda 3 GS 2.3
Borla,magnaflow,HKS,5zigen, or any others??
i read the sticky on exhaust but it really does tell me which ones are best?
help please.....
Borla,magnaflow,HKS,5zigen, or any others??
i read the sticky on exhaust but it really does tell me which ones are best?
help please.....