Sprint Booster

[mikeyb74]

So I finally got around to installing the Sprint Booster that I've had for a while. It was a piece of cake to install. The only thing was I broke the small tap that secures the pedal assembly to the bracket. Number 2 in the diagram.



Before installing I vacuumed out the car. After that I took a flat head screwdriver and inserted it into the side of the pedal assembly were the white tab is. Turn the screwdriver so the pedal assembly is loose and it will slide out. The white tab on mine broke and the assembly did not want to slide of the bracket because there was dirt that had gotten into the slide piece.

Once you have the pedal assembly off the bracket you now can go unplug the wire from the back of the assembly. Next you take the Sprint Booster and match up the connectors. Plug them in. After that you need to plug the switch wire into the housing. Then reinstall the pedal assembly. It took me probably under ten minutes.

The Sprint Booster is a really nice piece. It eliminates the lag when you hit the accelerator. I've driven 6 BMWs and acouple of non BMWs (G35, RX-8, and GTO).

[Crickett]

Wow, very straightforward! Does the switch simply enable/disable the booster? Where do you put the switch?

[mikeyb74]

The switch does enable/disable the booster. There is two settings with the booster on. Green light is Sport and Red Light is extreme. I've been driving around in the Sport mode. The difference is noticeable. Extreme is crazy. So better not drive with it in extreme mode when it's wet out. I have not figured out where to locate the switch. I'm thinking mounting it in the ashtray.

[Crickett]

Oh wow, didn't know it had different modes . . . don't M3s have an "M mode" button or something? You (or someone else w/the Sprint) should wire up the Sprint switch to that button!

[mikeyb74]

Oh wow, didn't know it had different modes . . . don't M3s have an "M mode" button or something? You (or someone else w/the Sprint) should wire up the Sprint switch to that button!

M3s, e60 M5, and e63/e64 M6 all have the "M mode" button. If my car had the individual switches instead of the one switch the DSC and heated switches that would work awesome.

[Crickett]

M3s, e60 M5, and e63/e64 M6 all have the "M mode" button. If my car had the individual switches instead of the one switch the DSC and heated switches that would work awesome.

Ah . . . then you just need to find this switch bar

[mikeyb74]

That would be cool but I do not have the HK hifi system or TPMS.

[Johnmadd]

I inquired about one on craigs list and the guy said he was selling it because he was getting shark, I did not get it beause it was the sprint booster without the switch. After I told him that I would prefer to have one with the switch he understood and still said that if I do get one in the future that he thought it was great and definitely worth the money.

[Jon D]

Just to ask a 'dumb' question why would you do this solution over a full software tune such as the AA Tune or Shark Tune discussed elsewhere? They address this issue and a number of others.

[ryankokesh]

Because a full software tune doesn't do a whole lot for us 325 guys. At least that's my understanding.

I'll probably pick one of these up if I can find a good deal on a used one...