those pipes are different...I just sold my T-5 for fatty's.T-5 are awsome for open running,but for trails it's a pain staying in the powerband and when you hit it all you get is wheelspin.You have to be perfect on the clutch comming out of the turns.To much = wheel spin and not enough = bogggggggg than hold on.... I ran the T-5's for years on open roads 4th,5th and 6th gears.once I started to run the tight trails I hated the t-5's.