RENNtech EVM | Exhaust Valve Module | McLaren mercedes-benz-sl-class--231---2017-present--sl63-amg-esr2518058 778 LB-FT @ 4

778 LB-FT @ 4

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

RENNtech’s proprietary tuning module contains both the Tuned file as well as your vehicles Stock file

Aston Martin DBX V8

RENNtech EVM | Exhaust Valve Module | McLaren mercedes-benz-sl-class--231---2017-present--sl63-amg-esr2518058 778 LB-FT @ 4EVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: If your vehicle is equipped with factory exhaust valves, with or without a center console button to open or close them, factory settings do NOT allow the flaps to fully open unless certain speed and or RPM have been reached. For example, while cruising the exhaust flaps will never fully open! THE EVM SOLUTION: RENNtechs Exhaust Valve Module, (EVM) gives you complete control over the exhaust