ok guys heres the thing iv had this problem for a month or so and i know excatly what it is but im not sure how to fix it, im lowered on ksport coilovers and i have the hahn 3in catback and its resting on the bar that runs between the rear tires (torsion beam) i think its called, and its makeing the most awful rattleing lol i put up with it for a while but im sick of it. anyway just wondering if anyone had the same problem and if theres anyway to fix it
oh yea 06 ss/sc just incase it matters

 

if you want quick and cheap you could try getting a can of that rubberized undercoating spray and lay that on there pretty good. you will probably have to keep applying it but the cans go for like 5-10 bucks at a local parts house.

 

Can't you loosen the clamp and try rotating the pipes for more clarence?

 

that would be the first step is to try and realign the piping. if not i would check and see if you can get tighter hanger connectors (rubber clamps on the hangers)