Good deal. That's almost worth it just for the powerbomb header. The powercore 4 isn't the best silencer out there, but it's reasonably quiet and it's still way better than the stock silencer.
right now my bike has a mega-max 2 on it. Anyone have any input on this one? I haven't heard anything about it. I just don't dig the 2-stroke sound. My buddy had a yosi on his 660R and that thing sounded awesome.