Fast Intentions Long Tube Headers are here!

Originally Posted by Daishi

Even before the LTH's I had a hissing noise even on acceleration. Theres just too much flow in the exhaust system and the x pipe makes it worse because of all the flow it hisses once the exhaust gases meet at the x pipe. Jack your car up and turn it on have someone rev it a little while you put your hands over the flanges and check for any air leaks. Careful not to burn yourself. Mines not leaking what so ever ive checked a million times already. Theres no rasp or hiss out the back of the mufflers but its easily noticeable from the side of the car or when the windows are open.