RENNtech EVM | Exhaust Valve Module | 172 - SLC 43 AMG; 253 - GLC AMG Models SUV + Coupe maybach-57-s---62-s--w240---2005-2012--6-0-l-v12-biturbo-esr7789155 RENNtech tuning software for Aston

RENNtech tuning software for Aston Martin offers significant gains in horsepower and torque across the vehicle's entire power band

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

+178 LB-FT

Our SLS Black Series performance package 1 features our proprietary ECU tuning software combined with our long tube headers unbelivable sound with performace to match

520awtq @ 3

RENNtech EVM | Exhaust Valve Module | 172 - SLC 43 AMG; 253 - GLC AMG Models SUV + Coupe maybach-57-s---62-s--w240---2005-2012--6-0-l-v12-biturbo-esr7789155 RENNtech tuning software for AstonRENNtech Exhaust Valve Module Permanently Open Exhaust Flaps. 172 SLC 43 AMG; 253 GLC AMG Models SUV + Coupe EVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: If your Mercedes AMG 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