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 117 - CLA

117 -  CLA

Bentley  Continental GT Speed (MY2012-18)

the factory settings do NOT allow the valves to fully open unless certain speed and/or RPM have been reached

Once the acrylic coating is cured

Installation requires no modifications to the trunk lid or body work and installs using 3M double sided automotive adhesive strips

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 117 - CLAECU+ 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