User Feedback For SprintBooster: " My friend just installed this on his 2005 545 and he loved it. The throttle response is greatly improved. He is about to get a software remap so he's also going to test the Sprint Booster after the remap. Several thousand miles of use here; no partial throttle "cruising problems” and no noticeable “dead” pedal position. The following graphic taken from Eagle Day's site partly illustrates how the effect feels to me. I could be very wrong in how I think this thing works, but lively engine response can't be denied. After completing two back-to-back, three hundred mile flat-out drives, I’m very glad the SB was there to help squirt me from a few potentially fatal circumstances; whether perception and reality are/were blurred for this product's contribution is of no consequence to me. "
