I have the greddy ti-c + kinetix y pipe + helix test pipes setup and when my revs drop to around 2000-3000 RPM there is screeching noise while decelerating.


jumpin800agl is having the same problem, you can tell on his video. Listen to the revs dropping then you hear this noise that sounds like some kind of exhaust leak. Does anyone have any idea what it is and what may be causing it? Could it be because we both have NON resonated test pipes?


http://www.youtube.com/watch?v=tbtttwGVmXQ



Any support is greatly appreciated.

 

Sure its possible.

When I back off the accelerator, it sounds like birds chirping. The exhaust is fine, it just sounds that way.

 

Just took apart everything today, found out my y pipe was completely cracked. I threw my stock one on there and now everything works perfect. Don't notice the rasp at all (if any).


Stupid y pipe caused me so much trouble from the beginning, annoying clunking noise.