The R1 performance package includes our proprietary ECU tune and higher efficiency intercooler pump for increased, power, performance and throttle response across the entire powerband.

R1 Performance Package includes:

• RENNtech ECU Upgrade
• RENNtech High Flow Intercooler Pump

   S65 AMG (W221) Stock Performance:

• 621 HP / 738 LB-FT

Modified Performance:

• 670 HP @ 5900 RPM / 840 LB-FT @ 2650-4500 RPM