Just put the non-stock "loud" pipes back on this bike I just bought. I had the prev owner reinstall stock one before I bought it. The local dealer said I'd benefit from a rejet and removal of the air injection system. I can feel extra heat near my feet from the engine block as it runs hotter, my exhaust has already blued some. Other than a bit more pollution is there any other downsides to doing these mods? Would this affect how it performs when it gets a bit cooler?
