RENNtech Exhaust Valve Modules Aston Martin DBX | EVM audi-s8--d4---2012-2018--4-0l-v8-esr7501940 but reduces weight by an

but reduces weight by an incredible 27

CLASS S LONG (W 221) 500 [ONLY USA] [2 Filters Required] (HP: 387 | Year: 05 >)

Weight optimization and developed specifically for the Mercedes-Benz S-Class

Rated by RENNtech (peak @crank):              745 HP @ 6

RENNtech Exhaust Valve Modules Aston Martin DBX | EVM audi-s8--d4---2012-2018--4-0l-v8-esr7501940 but reduces weight by anRENNtechs plug & play EVM Exhaust Valve Module allows you to open the exhaust flaps of your car 100% at all times press Button 1 on the remote control. If you wish to go back to factory settings press Button 2. This gives you complete control over the exhaust sound and rumble of your car at any time regardless of speed, RPM or driving mode! RENNtech has been at the forefront of Mercedes Benz AMG upgrades since the mid 1980s. Decades of experience with