i had a berks test pipe. def. made a different and louder sound especially around 3-5k rpms. sort of a mechanical whirling sound...

lets say this. at first when you put it on, you wont notice how much it changed the sound of the car, and a lil of the midrange til u take it off

o yea if you think k&n intake is loud u should hear aem v2 =P

 

The TP made my exhaust about 25% louder, but it also cuts the unwanted "drone" at normal throttle position on most exhausts.

It will seem really, really raspy at first. This will pass in a few weeks after carbon has a chance to build. The fact the bolts are spring mounted gives it a pretty good chance to vibrate until there is a little buildup to baffle it.

 

My T1R didnt have the flanges for the heat shield , do i need the heat shield?

 

No pipe besides T1R has them. All T1R pipes break those tabs at some point. That shield is only there to fool cops. Don't sweat it. Just swap back before smog.

 

Good advice. I thought I had an exhaust leak or a mysterious rattle somewhere until my test pipe "broke in"

 

What would a test pipe do with an exhaust that has no resonator just a pipe? Will it increase sound but decrease the drone heard at 3-4k rpm?

 

Damn that TP. I went as far as using a stethascope under the car looking for the leak. It's been driving me crazy. How long did it take to "break in"?

 

i just got my invidia TP Friday, befor homecoming...it made a throatyer sound with my magnaflow exhaust