Hey, new to this forum, hoping this is the right section. Anyway. I'm doing a Research Project for school and needed some help in regards to modifications to increase horsepower output. Don't really know much about it all, I've got a basic understanding of most from doing a bit of internet research. Would be good if I could get a few answers on advantages and disadvantages, along with maybe dyno charts to show the performance increase or decrease. If you've done these modifications to your bike was it worth the price you've paid to get that extra output? Links to pages would also be handy too I need as much information as I possibly can get. Cheers, Mike.