Join Date: Mar 2015
Location: Reading, England
Vehicle: SLK 55 AMG, R171, 2005 model
Other Toys: Nitrous R/C Buggy
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Must have modification for SLK55 AMG
I haven't owned my SLK55 for too long but was instantly impressed with it's power and noise but frustrated by its laggy gear shift when using the manual selection.
I took it to my local Mercedes performance specialist in the UK and they fitted a system called Sprint Booster that electronically removes the lag in gear change and throttle response. It has gives the driver the ability t switch it off, have it at a semi-aggressive setting (Green setting) or full aggression (Red setting).
It cost Ł200 fitted and the difference is impressive. Even in Green mode the gear changes are very quick but put it in red mode and they are near enough instant and if you leave the car in auto gear change and plant your foot down the gear changes are as quick as an F458 (which I've been lucky enough to drive) and it accelerates quicker than standard.
In my opinion it's a must have performance mod for not much money.