hey guys.... i just put on my exhaust its a bolt on konig mozart....anyway it did this before i think but....say im like showing someone the way it sounds and i rev it up but i push the pettle all the way in.....like fast..it holds up its like vrrrr vrrr vrr vrooooooooom!..... instead of just vrooom... and when i push the pettle in slow it doesnt do it.....its just normal sounding......is this something i should worry about???
whut could it be??