How much does a leaking header gasket change exhaust sound?
My header gasket is leaking, ive ordered a new gasket and as it coming off anyway a new 4-1 dc header. I have a raspy noise from my car at like 3000rpms and when vtec just kicks in, ive had the exhaust (mongoose full system) for like 6months and its never made this sound before, untill i noticed the gasket was leaking coz i went back to place that sold me the exhaust and they said the leaking gasket would be the cause for the rasping (they spotted the leak not me) if its the exhaust ill get a new one!! coz i hate the raspy sound!!
Any ideas on if its the gasket or not causing it anyone??????