and thats 150whp, not 150hp. you can get 2-4whp for a cat-back, 4-5whp for intake, bouth 4whp for a udp, it starts to add up, and 150whp is compared to 100-110whp stock. so 40-50whp really makes a difference.erik-smith said:No 150hp doesn't sound like a lot, but the stock 130hp moves my ZTS along pretty well. Suprised me a bit. So, I guess I should have asked if those 3 items I listed in the first post will add noticable acceleration, which is what I really want. Top end is not my big thing, my motorcycle will do around 150mph, but what I really like is the rush of acceleration off the line!