Originally Posted by gear_monkey
It is a Perrin catless down pipe connected to my OEM exhaust just before the y split.
I have found at least a little of the problem..the dp is touching the firewall as it makes its way out of the turbo.
Would a resonator be the best noise solution? My real complaint is the turbo whine that is really loud now.
The Perrin is a terrible fit. Dump that pipe and get anything else......even a gutted OE DP.