I was wondering if anyone knows what a pop noise means when it come out the dumptube. It sounds like it comes from my dumptube because I have open headers and it does it everytime I start to accelerate on it and it only happens on the beginning of 1st and 2nd gear. My dumptube has a lil hole on the side like if something hit it and made it. Ill post a a clip or something when I get a chance.