Sorry for the confusing thread title. I added the Greddy SP exhaust to my Cobb DP yesterday and noticed now I have some movement/banging when I get into 75-90% throttle in 1st and 2nd gear. It feels like it's upfront in the DP area. I put the car up on jacks after I noticed it and tried to move the exhaust but I couldn't replicate any movement. The aft cross member area looked tight (even using the spacers) so I removed the brace but it's still making contact somewhere. I'm thinking it must be coming from the DP as maybe the Greddy setup is more rigid than the stocker so when the motor moves it is moving the DP? Just spit balling here anyone else run into this issue?