Alright this is probably an extremely noob question but im looking for serious answers. I just recently went to NJ englishtown raceway park for Street Wars Saturday and well at last Honda Day too. But whenever some of like the badass civics did there burnouts it went from like normal exhaust to a loud ass shotgun sounding popping noise. So i tried to ask a couple of people about it, but ppl dont seem to like to explain or be cool. So i figure you guys could give me some info. One guy mentioned 2-step? im not sure but i want it. So any help is appreciatred. thanks guys