Join Date: Dec 2013
Vehicle: SLK 350 R171 2004
Other Toys: Mercedes W204 C280 Elegance
Mentioned: 456 Post(s)
Tagged: 2 Thread(s)
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The gain for normal aspirated is minimal, 8-9hp max...with dyno before and after but the throttle response and the general feeling of acceleration will be better.
You can find an original file for your ECU, mod that and then write with kess, in this way there is no need to open the ecu.
Remote installation of Passthru, C4 DAS/Star Mercedes, XENTRY,EPC/WIS