RENNtech ECU Upgrade S 600 (W221- 625 HP / 745 LB-FT) mercedes-benz-gle-class--167---2021-present--gle-580-esr6050895 The rotors bolt directly to

The rotors bolt directly to the car and fit perfectly with Mercedes-Benz AMG OE calipers and the iron rings can easily be replaced when needed

This ensures our customers receive components which not only look good on the vehicle standing still

This is accomplished by reducing exhaust system back pressure and improving exhaust gas flow

This combination of high quality

If your vehicle is equipped with factory exhaust valves

RENNtech ECU Upgrade S 600 (W221- 625 HP / 745 LB-FT) mercedes-benz-gle-class--167---2021-present--gle-580-esr6050895 The rotors bolt directly toRENNtech ECU Upgrade for 221 S 600. Up to 625 HP and 745 LB FT. Gains: +115 HP & +133 LB FT. RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning