RENNtech EVM | Exhaust Valve Module | Audi | Maserati jaguar-xj--351---2009-2019--esr9874497 and was tested and perfected

and was tested and perfected on the Nürbugring

The RPM comes with a bypass that can be installed in place of the module for quickly turning the vehicle back to stock

RENNtech height adjustable spring perches for front and rear

C257 - CLS Coupe CLS450 (Air Body Control Optional)

RENNtech EVM | Exhaust Valve Module | Audi | Maserati jaguar-xj--351---2009-2019--esr9874497 and was tested and perfectedEVM 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)