RENNtech ECU+ Upgrade | Aston Martin | DBX V8 | 644 HP / 676 LB-FT | 4.0L V8 BiTurbo | M177 | MY2021-2023 mercedes-benz-cls-class--218---2015-2018--cls63-amg-biturbo-4matic-esr2890927 We have found the new

We have found the new M178 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

0" Weight:   Construction: 1-piece Forged Tire Size: 325/25-20

There is a control unit for monitoring the back pressure

332 LB-FT @ 2

With the release of the Vantage V8

RENNtech ECU+ Upgrade | Aston Martin | DBX V8 | 644 HP / 676 LB-FT | 4.0L V8 BiTurbo | M177 | MY2021-2023 mercedes-benz-cls-class--218---2015-2018--cls63-amg-biturbo-4matic-esr2890927 We have found the newECU+ Upgrade Up to 644 HP 676 LB FT Gains: +102 HP & +94LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! 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. The Aston Martin DBX is powered by by one of