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      12-16-2011, 11:23 PM   #6
5mokem
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Drives: 2008 550i
Join Date: Dec 2011
Location: Southern California

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I just bought the Sprintbooster. It gives you a better throttle response, more like the old gas pedal attached to a cable. I read tons of reviews and everyone who's tried it is a believer. I'll let you know how it is when I get it on Monday. The lag from the 550i is so bad, I took my car in for warranty thinking it was a fuel delivery problem. They said they just reset my software. Still no good so I finally ordered the sprint booster. Www.sprintbooster.us is 299 and free overnight shipping.
Appreciate 0