RENNtech | ECU+ Upgrade | G550 4x4² | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 mercedes-benz-sl-class--232---2022-present--sl-43-amg-biturbo-esr7590087 Once the acrylic coating is

Once the acrylic coating is cured

117 -  CLA

With the proprietary RENNtech ECU Tuning the C217 - S560 gains up to +100 HP and +102 LB-FT

RENNtech’s Exhaust Valve Module (EVM) allows you to open the exhaust valves 100% at all times

RENNtech ECU Plus Upgrade for C292 - GLE 43 AMG Coupe

RENNtech | ECU+ Upgrade | G550 4x4² | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 mercedes-benz-sl-class--232---2022-present--sl-43-amg-biturbo-esr7590087 Once the acrylic coating isECU+ Upgrade 523HP 582TQ Gains: +102HP +128TQ RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to