RENNtech | High Pressure Fuel Pump Upgrade | M177 - 4.0L V8 BiTurbo mercedes-benz-gls-class--167---2020-present--gls-63-amg-esr1798052 The RENNtech discs are machined

The RENNtech discs are machined exclusively in the United States from start to finish

and high-temperature brake fluid (600-degrees or higher)

Bentley Flying Spur Speed

The result is an additional 10 HP and 10 Lb/ft with increased throttle response and improved drivability

We have found the new M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

RENNtech | High Pressure Fuel Pump Upgrade | M177 - 4.0L V8 BiTurbo mercedes-benz-gls-class--167---2020-present--gls-63-amg-esr1798052 The RENNtech discs are machinedHigh Pressure Fuel Pump Upgrade Kit M177 Twin Scroll The RENNtech HPFP upgrade is for serious enthusiasts. Flowing 37% more fuel than stock, the RENNtech HPFPs will provide you with enough fuel to make significantly more power. This kit has been used on vehicles making 1000whp on Race Fuel. Alternatively, it can be used with smaller turbos and ethanol. The RENNtech HPFP kit has been designed with an emphasis on reliability and performance. The