So I bought a gen 1 busa at less a year ago. When I first bought it I had it on the dyno and it made 180 and 4.5 psi pump gas with map from Mr turbo. I rode the bike for a little bit and I put it in the corner of my garage and focused on my drag bike. My buddy ended buying the bike from me about a month ago and went crazy with the bike. First thing he did was installed a new waste gate and turned the boost up. He had a local guy tune it for him. Hitman performance. Bike made 220 225 on c16 sock injectors maxed out. So after a weekend at the track he wanted more. He bought bigger inj6to replace the stock ones. I think he bought some 550 cc injectors. He had another guy tune it and spent lots of money on a tune and fuel. Bike ran like crap and didn't get a dyno sheet. He went back to hitman for a new tune. Bike pushing 15 psi and 10.5 afr bike made 260 hp and 178 trq. This is a bike with that's been turbod since new never been touched motor with 50k miles on it. Some might say numbers are low. But this bike is 12 inches longer then stock with a shinko hook up on it and 5 hours of dyno time. Goes to show how amazing the gen1 hayabusa is and how strong they are. Hitman said with a regular tire and lean the tune out the bike should make around 300 on his dyno. We are going to the track this week to see what his bike can do. I will update this with time slips.