I want a meaner and deeper sounding exaust, i have a CAI and Cat back exaust. will a header and a high flow cat give me what i want or should i just not bother. Also if a header will help should i go with 4-2-1 or just 4-1.
A test pipe will make it loude
Allan2008 Magnetic Black 350z NISMO /1976 Austin Mini 1098 Special (export)Member# 1980