SL 450 BiTurbo
-
RENNtech | ECU Upgrade | SL 450 AMG | R231 | 402HP/454TQ | 3.0L BiTurbo V6 | M276
RENNtech ECU Upgrade for 231 - SL 450 AMG BiTurbo 4-MATIC. Up to 402HP and 454TQ. Gains: +40HP & +70TQ