I am currently running this pipe sounds great its louder then the tors that I took off (that reminds me I have a set for sale)but not as loud as the carpenter pipe and yes its a direct bolt in took me about 20 mins to put on only issue I had was my heat shield only has one bolt hole but I just have to make a bracket for it no big deal as far as the power I really couldn't say if it increased any but I like the way it sounds and it doesn't burn your pants like the carpenter exhaust