RENNtech | ECU Upgrade | R230 | SL 600 | MY07-11 | 625 HP / 745 LB-FT | 5.5L V12 BiTurbo | M275 mercedes-benz-s-class--221---2007-2013--s63-amg-biturbo-esr6433928 stand-out look

stand-out look

Increasing performance in stages offers a clear path toward the desired development goal or stage

Please see the RENNtech R1 Package for the M157 engine for the perfect combination of the RENNtech ECU Upgrade and Diverter Valve

0L I6 Turbo EQ Boost) Stock Performance (at crank):

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RENNtech | ECU Upgrade | R230 | SL 600 | MY07-11 | 625 HP / 745 LB-FT | 5.5L V12 BiTurbo | M275 mercedes-benz-s-class--221---2007-2013--s63-amg-biturbo-esr6433928 stand-out lookRENNtech ECU Upgrade for 230 SL 600 MY 2007+. Up to 625 HP and 745 LB FT. Gains: +115 HP & +133 LB 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