RENNtech EVM | Exhaust Valve Module | Audi | S8 (D3/4E) porsche-911--991-2---2015-2019--speedster-esr6796864 RENNtech adjustment wrench for spring

RENNtech adjustment wrench for spring perches

SLC 43 AMG Coupe (R172 | M276 | 3

RENNtech ECU Upgrade for 166 - GL 450 BiTurbo 4-MATIC

utilizing existing factory mounting locations

Carrera 4S Cabriolet

RENNtech EVM | Exhaust Valve Module | Audi | S8 (D3/4E) porsche-911--991-2---2015-2019--speedster-esr6796864 RENNtech adjustment wrench for springEVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: Sportscars equipped with factory exhaust valves, with or without a center console button to open or close them, the factory settings do NOT allow the valves to fully open unless certain speed and or RPM have been reached. For example, while cruising the exhaust valves will never fully open! THE EVM SOLUTION: By pressing Button 1 on the remote control, RENNtechs Exhaust Valve Module (EVM)