I have that set up on my StreetBob. Question: Did the SE 'PRO' Super Tuner computer module come with your kit? It did mine. Somebody who knows their stuff can tune that motor as well as the old school Dyno tuning way and nail it.
Tony, the younger mechanic at the shop I deal with, is REALLY up to date on this stuff. He's been dealing with it since it first came out and drag races one of his own machines. He runs the SE PRO Stage IV kit in his own bike, and he has his choice of anything. He tweaked the set-up a bit based on his own personal experience, and dialed it in perfect. He told me that swapping from my SE Street Performance Dual Shorty's, although I DO love the looks and sound of them, to the Thunderheader system that he swears by, told me that flat out I would see a minimum of 12 horsepower at the rear wheel and probably 14. He said, and I'm quoting here, "You'll feel the difference as soon as you pull out of the parking lot. Guaranteed." So I took the plunge and they came in yesterday but I have to sell my Screamin' Eagles before I can have them put on.
Having that SE PRO Super Tuner to work with makes all the difference in the world. As far as mid-range torque goes.....I can pull the front wheel up in second by snapping the throttle. There is NO hesitation anywhere and mine pulls hard from 2,800 and at 3,500 it feels like afterburners are kicking in. There is NO hesitation or let off anywhere in the power band.
Disclaimer: The Thunderheader system is for closed course competition use only...wink
"Nothing wrong with a good shooting as long as the right people get shot"....Robert DiNiro
SE 'PRO' Stage IV Race Kit installed, Thunderheader Racing 2 into 1 Exhaust System, SE Orange 'Phat' plug wires, mag wheels buffed out by hand, orange engine paint accents done myself, and too much wax...lol