I have a stock 2005 Rocket and switch between the stock pipes and my D&D pipes . I was wondering if the D&D pipes give the bike more horsepower or do they just sound better. Seat of the pants feels very close to me. Anyone tried these 2 different exhausts systems on a dyno? Thanks
Yer D&D's need tuning to get their best. Can tune up into the high 130's ( seen one with `136hp)
On the Triumph tune? prob get a bit more than stock, but not enough to feel much.
If you loose your cat box and go with a cat delete of some sort you get some power gains into the 130s and with our new speed laws that will easly get your bike impounded for 30 days 40 klm over posted speed and she is gone