Do Kooks long tube headers make more interior noise? I have set on my car and there is considerable more interior noise. Not from the tail pipes but I can hear it from the front in the engine bay through the floor of the car. Kind of a popping/ticking sound. Not bad at criuse but gets louder under acceleration. I can find no exhaust leaks at the heads but there may be some from the slip fit collector. Is this normal? Do long tube headers just make more noise in the engine compartment becasue the tubing is thinner? Any ideas?