RENNtech EVM | Exhaust Valve Module | Audi | Bentley ferrari-612--2004-2011--esr6569405 The result is an additional

The result is an additional 10 HP and 10 Lb/ft with increased throttle response and improved drivability

Rated by RENNtech:               474 HP @ 5

with or without a center console button to open or close them

45 AMG (MY2013+ | M133 | 2

Gains: +105HP & +132LB-FT

RENNtech EVM | Exhaust Valve Module | Audi | Bentley ferrari-612--2004-2011--esr6569405 The result is an additionalEVM 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)