Like the topic says, i got my sfc's installed, the shop charged 130 for two hours of labor. It looks really nicely done, i was happy. After driving a little bit i realized why people wanted these things. I noticed after a while of driving, each time i took off or really got on it, there was a considerable rattling sound. After inspection on the passenger side, i noticed that the exhaust pipe must be hitting the sfc. There isnt much room over there. Keep in mind that i have a straight pipe in place of the cat. Is there anything i can wedge inbetween the pipe and the sfc? I just want something to stop that rattling, its bad and you can almost feel it through the floorboards.

 

Anything that you wedge in there will transmit the vibs from the engine right into the car. Try and see if you can't bend the exhaust pipe down a little bit when the pipe is hot.