I have a 01 gsxr 750 and I noticed the 02 and up models are rated at a higher horsepower. I wanted to know how the increase was made and can I do it to my bike. I know the newer ones have higher compression. Is this the only difference and is it made with different pistons or with the head. Maybe it’s a totally different engine or something that I can change with a power commander. Any input would be helpful.