The R1 performance package for the Mercedes 600 V12 engines includes our proprietary ECU upgrade, TCU (transmission control unit) upgrade in addition to our higher efficiency intercooler pump.

This combination that provides huge increases horsepower, torque and throttle response across the vehicles entire powerband while still maintaining daily driver reliability.  

R1 performance package includes:

• RENNtech HHT - Hand Held Tuner ECU Upgrade
• RENNtech TCU Upgrade
• High Efficiency Intercooler Pump

SL 600 (R230) Stock Performance:

• 493 HP / 590 LB-FT

Modified Performance:

• 635 HP / 780 LB-FT

Gains:

• +142 HP / +190 LB-FT