No, not with just that. But i'm talking about pipes filter AND cat removal. The RIII gains 18 HP with cat removal alone, and thats according to guys who dyno'd thier with and w/o, so thats REAL HP. (rear wheel) So if this bike got a gain relitive to the RIII for it's size, which is approximately 2/3 the size of the RIII, it would gain 2/3 of 18 HP or 12 HP. Add to that a few for pipes and air flow and you're at the same if not a bit more than the BB kit. It's just a matter of time before someone comes up with a bypass unit for it and maps for it. Triumph actually makes the cat bypass (called "muffler upgrade" in the accessory catalog) for the RIII as an "off road" accessory. So far i don't see one for the Tbird, so someone will have to make one for it and i'm sure someone will.