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R3 Performance Package for S 65 (W221- 700 HP / 900 LB-FT)

R3 Performance Package for 221 - S 65 AMG. Includes ECU Upgrade, TCU Upgrade, High Efficiency Intercooler Pump, RT 3pc. Carbon Fiber Air Box, 100% Locking DIfferential and Transmission Upgrade. Up to 700HP and 900LB-FT.
Gains: +69HP & +162LB-FT
SKU: PKG.221.S65.PERF03
Retail price without tax: $20,980.00

The R3 performance package is the ultimate performance upgrade for your 65 series Mercedes!

Our package 3 includes everything found in our performance package 2 plus our 100% locking limited slip differential upgrade to improve handling and traction and our transmission performance upgrade which includes full transmission internal modifications for additional holding power without slippage.

This fierce combination will unleash the true potential of your V12 Mercedes and ensures you area able to transfer all your new found power to the ground!


R3 Performance Package includes:

  • RENNtech ECU Upgrade
  • 3pc. Full Carbon Fiber Airbox
  • RENNtech High Flow Intercooler Pump Kit
  • Stainless Steel Performance Mufflers
  • 100% Locking Differential
  • RENNtech Transmission Upgrade


S 65 (W221) Stock Performance:

  • 621 HP / 738 LB-FT


Modified Performance:

  • 700 HP @ 5900 RPM / 900 LB-FT @ 2650-4500 RPM


Contact us

7825 SW Ellipse Way, Stuart, FL 34997
(+1) 561 - 845 7888
Mon - Fri 9am - 6pm


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7825 SW Ellipse Way - Stuart, FL 34997
TEL: 561.845.7888 FAX: 561.845.6777 E-MAIL: