The Suzuki GSXRs are popular not because they are the fastest sportbike (the daytona and ZX6R take that title) and not because they have the best race handling ( R6) but because they are much easier to ride compared to the other supersports... they all have very similar power anyway (bar the...
There are many ways to add horsepower- it all depends on how much money you want to spend
Heres a list of things that would improve performance:
with the biggest increases in horsepower at the top:
Turbo Charger +20%HorsePowew(BHP) (Yes ppl put them on bikes ) $1400+
Power Commander +...