Quote Originally Posted by Bigcityd View Post
Has anyone noticed a performance improvement with their aftermarket pipes or is strictly an aesthetic/aural change you were after? I just bought a new F6B with stock pipes. If there is a performance improvement I might change up while she sleeps in the garage for the winter.
I have a 2000 Harley Dyna with Screaming Eagle Stage 2 upgrade with straight pipes. There was a big performance boost-10 hp with the straight pipe. And really loud! Just wondering if there was a power boost with the aftermarket pipes that anyone actually notices as opposed to what the manufacturer stated.
I have no 'after' Dyno pulls to back it up, but my butt Dyno says I did pick up a few ponies when I put on the Torque Loopz with the Jekill & Hyde mufflers. If I was to guess and it would only be an educated guess at best, but I'd say about 8 to 10 rwhp. I have also noticed I seem to have gotten the same performance increase with the Jekill & Hyde system open or closed, just louder with it open.