M3 GT4 Designed Carbon Fiber Front Lip E9XM Edition The Re|Flex firmware and XDF’s

The Re|Flex firmware and XDF’s include ethanol compensation tables to scale properly for varying ethanol % based on real time input from the sensor

Performance Fuel Line Features Aeroquip AN6 Socketless fuel hose

Each downpipe has 2x O2 sensor bungs so the factory BMW O2 sensors can be remounted allowing the ECU to continue to monitor the exhaust gases

the best solution is to have an intercooler that is as small as possible while still keeping intake air temperatures (IAT) low

Our 4" resonators are installed in the perfect location to enhance the sound of your S55 without compromising the precise fitment of our M4 downpipes

M3 GT4 Designed Carbon Fiber Front Lip E9XM Edition The Re|Flex firmware and XDF’sDescription Front Lip Compatibility: 2008 2013 E90 E92 E93 M3 Build Material: fiber reinforced polymer & glossy carbon fiber overlay