RENNtech EVM | Exhaust Valve Module | Ferrari | F8 audi-rs6--c7---2013-2018--4-0l-v8-tfsi-esr3264157 With the proprietary RENNtech ECU

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

up to an astonishing 669 HP and 734 lb/ft at the crank

Add longevity to brake pads and rotors

Other companies use a lower cost

RENNtech EVM | Exhaust Valve Module | Ferrari | F8 audi-rs6--c7---2013-2018--4-0l-v8-tfsi-esr3264157 With the proprietary RENNtech ECUEVM 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