Hello, I installed a FMF powercore 4 muffler on my bike last week and it has made a huge difference. The bike sounds awesome! I'm going to complete my stage 1 and order a header Monday morning. I have done a lot of searching and reading on this forum and I am pretty much sold on the FMF Megabomb. I ride mostly on the street just running errands and exploring new roads. I would like your thoughts on this header and if you would suggest any other pipe? Thanks very much!