So I just installed my XS Power Headers and for some reason when I put it in D5 or reverse.. the exhaust starts to shake like crazy and the vibration can be felt from inside the cabin. When I am in park or neutral, it doesn't shake. Has anybody else experienced this? Any suggestions on fixing this problem? Could it be that the bolts are tightened down too tight? Or the rubber thing that holds the headers is weakening?

 

is the exhaust mount for the j pipe on/tightened?

 

Loosen all the bolts and then retighten them. Sounds like its the resonance that some get.

 

u get what u pay for. check for leaks and any look bolts