Ok you guys tell me what you think. I installed a test pipe about a month ago. Since then that i've noticed, a small clattering noise in the lower rpm ranges, mainly in 1 and 2nd gear. I checked the test pipe it is tight. My car is an 00 with almost 29k on it. I have never adjusted the valves since I got it with 13k on it. Let me know what you guys think.
Thanks
Oz2

 

If ya have a cold air intake....sometimes it can rub and ya get a sorta chatter when sitting at idle or in first.....ya might want to check before ya do anything drastic.

 

You should also check the round pice/gasket that conect the test pipe. on both side it might just be a little off?

 

Mine does the same thing. I'm running a stock exhaust with a Spoon N1 straight pipe.

I think it might have something to do with the springs on the bolts which didn't seem to do anything. I know what they are SUPPOSED to do, but they just coil bind when the bolts are tightened down. Doesn't work quite right with the stock exhaust.

At any rate, the noise is normal and nothing to worry about.