I did basically the same mods to my Superduke, installed the CPR Rottweiler intake, removed SAS, removed secondary butterflies and shafts, added RC8 velocity stacks, O2 eliminators, and FMF Apex exhaust. I plugged the breather hole in the CPR base plate and routed my breather hose to a small filter instead of dumping oily fumes back into the intake. Tuned with TuneECU and pulled 121hp and 75.5 torque on the dyno. Smoothed out low end jerkiness (combined with a G2 throttle tamer), improved rideability greatly, revs quicker, and absolutely screams to redline. Like the original post said, saved a bunch of weight too, all the smog crap weighed 10lbs.