[jjhebigscreen]

I have a 2014 435ix with mppk and mpe. When I installed the mppk it definitely helped with the throttle response especially in comfort mode. I read about the sprint booster on another auto manufacturers forum and then watched you tube videos for people that had done sprint boosters on 3 series BMW and some bimmers with turbos. All the reviews where positive but I was still skeptical but I figured I give it try since it has a 30 day money back guarantee. I installed it this week and all I can say is wow! What a huge difference in how the car accelerates and how it feels while accelerating. Great product for n55 engine and probably other cars. Get on board sprintbooster.com

[Brett530]

I installed one on my 2012 F30 N55 because it had some hesitation at the beginning of acceleration that drove me crazy. It solved the problem and made the car much more responsive.

I just got a 2017 F30 B58 and it has a very different acceleration profile from my 2012. It has much better pull well past illegal speeds. While the low end has no hesitation, it seemed a little slower/smoother off the line than my N55. I put the Sprint Booster on yesterday and it has made some improvement to the off-the-line start.

One thing I enjoy about it, is that I can adjust the throttle responsiveness in Comfort mode. It is less necessary in sport & sport+.

[bobiam]

Originally Posted by jjhebigscreen

I have a 2014 435ix with mppk and mpe. When I installed the mppk it definitely helped with the throttle response especially in comfort mode. I read about the sprint booster on another auto manufacturers forum and then watched you tube videos for people that had done sprint boosters on 3 series BMW and some bimmers with turbos. All the reviews where positive but I was still skeptical but I figured I give it try since it has a 30 day money back guarantee. I installed it this week and all I can say is wow! What a huge difference in how the car accelerates and how it feels while accelerating. Great product for n55 engine and probably other cars. Get on board sprintbooster.com

The following is from BMW's press release describing MPPK. What is you comment on this with your above experience??
All models receive a re-mapped accelerator pedal calibration for more dynamic throttle response, and the Power Kit produces a signature, highly-emotional "exhaust burble" sound during engine overrun conditions. 0-60mph acceleration is improved 0.2 seconds compared to standard 335i models, while 50-75mph times drop by a full half-second.

[mike@x-ph.com]

We offer the Sprint Booster its a very popular product.

You also might want to check the REMUS Responder, does pretty much the same thing and is cheaper