I've searched through lot of sources and seems like i do not get anything out there, so i've came to conclusion to open a thread and hope sifu out there can help me out..
guys i need your opinion here..what is the best exhaust piping diameter setup for stock evo1&2..??
2.5 inch or 3 inch..??
if i would to upgrade my current 2.5 inch to 3 inch what difference...
