RENNtech ECU Upgrade SL 65 MY2007- (R230- 670 HP / 840 LB-FT) bmw-5-series--f11---2010-2017--esr6570814 Our sound pipe design features

Our sound pipe design features an X-pipe to balance exhaust gas pressures and smoth out pulses to improve flow

The RENNtech performance turbo upgrade is truly the ultimate upgrade for your E63 (S) AMG Sedan and Wagon

Up to 402HP

The resulting gains are noticeable on the road with better throttle response and improved acceleration times

RENNtech ECU Upgrade SL 65 MY2007- (R230- 670 HP / 840 LB-FT) bmw-5-series--f11---2010-2017--esr6570814 Our sound pipe design featuresRENNtech ECU Upgrade for 230 SL 65 AMG. Up to 670HP and 840LB FT. Gains: +49HP & +102LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning