Well I was trying to sleep in after a late night going to bed at 3. Well I get woked up by a doorbell, who could be wanting me early at 8AM. WTF, am I awake, the Post Office guy? So I sign, and when I open my eyes more I realize its the sprint booster. So I say what the heck I'm already up. I get the thing installed, takes about 2 minutes. I put it in and I notice my RPMs are revving from 1-2 constantly. I get errors on my i-drive with engine malfunction and cruise control fatal error or something. :think:
So I try to drive the thing and it just jerks like crazy. So I take a recess, have breakfast to think it over. :think:

I take the pedal off again and disconnect and reconnect it. Start it, engine isnt revving before and no errors, yay. :wink:
I take it out for a spin, and first impressions, holy *hit. The 525 doesn't have the most power, but with this thing it feels like a total beast. :evil: :evil: I drove through the neighborhood a bit, and I already know this thing will be getting me tickets. Speed limit is 20 and I find my speedometer at 60 somehow. :think: But the mod is definately worth the money, my only main concern is, does this damage the engine over time with the high revs? I think I gotta get used to this thing first before jumping into the weekly traffic which I always face if I don't want to get into a accident with the added thrust.

haha i know exactly how you feel.my first time was late at night and i was the only one in the freeway.

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The Postman delivers on Sunday??

I was thinking the same thing :think:

I have never heard of such a thing either, but sure enough the USPS guy was at my door.

Another satisfied SprintBooster :twoup:

In time, you'll learn how to adjust your accelerating habits. Surely you won't be driving like a beast everywhere. But it's nice knowing that when you need to mash on that pedal, she'll go :)

How easy was the install? Will it void BMW warranty?

look out road!!! heehe :lol:

FBI, ATM or... spy? :lol:


how does it affect the MPG?

Hey Martin, the installation was very easy. Simply remove the gas pedal, plug-in the module - you're done. The challenging part is more on hiding the module under the carpet. If you want a clean job, you'll want to tuck the module under the carpet.

I haven't had any issues with warranty... but I'll let the others chime in regarding their experience.