Hi guys,

I've changed my extractor to 4-2-1, de-cat, added 2x bullets.
Followed by pipes until muffler still stock.

Problem is i get a very loud tinny sound when i do harder acceleration.
I can only pinpoint that the noise is actually coming from either the front or below of the car.
Any idea what's the problem? is there a way to get rid or reduce the tinny sound?

btw its a persona Iafm Auto

This post has been edited by StarburstMz: Mar 22 2015, 02:06 AM