was driving home yesterday and heard a noise like something dropped off my car, next thing i have a sound like an exhaust leak, gets louder with rpms, and quiets down with lower rpm. i get it home and pop the hood and it sounds like the noise is coming from the back of the motor, i crawled underneath to make sure all the bolts are tight and they are good. smells like fuel and exhaust from the engine bay. cant find the noise, any help??? thanks!!
