Originally Posted by RAP

cchips....Take a bright flashlight and look into the mufflers from the rear. The left muffler will have a smaller opening at the opposite end your looking from. (cone shaped)

Originally Posted by AVALANCHE1

I can tell you the bike spools up to red line very quick and the torque band comes on early and pulls hard much longer than when it was stock. It does not feel choked up at all and although the temps were never warm enough to feel much cat heat while stock I did not notice anything with this setup. It also pulls 6th gear effortlessly at 60 mph.
I went from stock to this set up so cannot tell you what the cams did vs the jackpot exhaust system and the stage 1 air cleaner but I cannot think of anything I don't like about the entire package. The sound at cruising speed is radio friendly with plenty of bark when desired. It also has a nice lump at idle.