Anybody got any vibrating noises?

[DamageInc]

If you have any rattling, sizzling,vibrating, or othewise annoying metallic humming noises coming from your engine/transmission area , check the forward cat heat shields especailly on the passenger side, mine were just re-welded and the difference is incredible, I now can hear a nice smooth rev and actually hear the "whir of the 32 valves" as the 2001 Cobra catalog states.
This is on the factory Hpipe mind you.

 

[YELL-OSNAKE]

See, I know there were other good reasons for changing the factory pipe, I thought it was just for performance. Thanks for the info, little tidbits like these help everyone.