R2 Performance Package for ML 63 (W164- 566 HP / 518 LB-FT) audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 Installation is easy with interlocking

Installation is easy with interlocking tubing

G 500 (463) Stock Performance:

delivering up to 505 HP and 460 LB-FT with solid reliability and longevity

RENNtech M273 Biturbo ECU Upgrades

R2 Performance Package for ML 63 (W164- 566 HP / 518 LB-FT) audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 Installation is easy with interlockingR2 Performance Package for 164 ML 63 AMG. Includes ECU Upgrade, Carbon Fiber Air Box, Upgraded Throttle Body and Stainless Steel Headers. Up to 566HP and 518LB FT. Gains: +59HP & +53LB FT RENNtech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RENNtech stainless steel headers for a gain of +59 HP and +53 LB FT over stock. Performance Package 2 Includes: RENNtech ECU