MSpeedFreak03
Member
- :
- 2003 MSP
why dont they just do a "j pipe" back exhaust 80mm "s pipe" isnt going to make that much of a differance, were talking maybe 5whp... lets compare the GHL to the Vibrant and see what the numbers are on a stock car... also if you run just the "j pipe" it is much easier to run a external/divorced wastegate you wouldn't be limited to that "s pipe"which isnt the greatest in the first place (mazdas bad)