RENNtech R1 Performance Package | GLS 63 AMG | X167 | 745 HP / 767 TQ | 4.0L V8 BiTurbo | M177 | MY2021+ mercedes-benz-cl-class--216---2007-2014--cl550-biturbo-esr1724818 For this reason we use

For this reason we use only alloy mesh with epoxy coating to ensure protection from petrol fumes and from oxidization due to the humidity of the air

Confirm If Your Car Is Equipped With Factory Exhaust Valves*

Optimized WOT and Part Throttle maps

Up to 709 HP and 638 LB-FT @ crank

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RENNtech R1 Performance Package | GLS 63 AMG | X167 | 745 HP / 767 TQ | 4.0L V8 BiTurbo | M177 | MY2021+ mercedes-benz-cl-class--216---2007-2014--cl550-biturbo-esr1724818 For this reason we useR1 Performance Package for AMG GLS 63: ECU Upgrade (HHT), Transmission Control Unit Upgrade (TCU), Off Valves (BOV), Exhaust Valve Module (EVM), BMC Air Filters The Mercedes AMG GLS 63 (X167) is powered by the latest V8 BiTurbo engine developed by AMG, the companys Affalterbach based performance division and long fabled engine builder. The result is nothing short of spectacular and the 4. 0L V8 BiTurbo engine is an incredible platform to build