AEM X-Series Wideband UEGO AFR Sensor Controller Gauge s4b8.5 The free-flowing Cobra Sport exhaust

The free-flowing Cobra Sport exhaust setup completely transforms the vehicle and will open up the future tuning possibilities of the BMW M135i (F40)

Note: The 'To Standard Fitment' fits to O/E Cat Back only

which in turn opens the door to gains in both power and torque

The limitation of how much volume of fuel the high pressure pump can flow is dependent upon the volume displaced by the pressurizing cylinder inside the pump

AEM X-Series Wideband UEGO AFR Sensor Controller Gauge s4b8.5 The free-flowing Cobra Sport exhaustAEM X Series Wideband UEGO AFR Sensor Controller Gauge with X Digital Technology. Includes: X Series Wideband Controller Gauge, Bosch LSU 4. 9 Sensor, Wiring Harnesses, Black Bezel, Black AFR Lambda Faceplate & O2 Sensor Bung AEMs X Series Wideband UEGO Air Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology (Patent 9,575,030) that makes them the fastest responding wideband air fuel ratio controllers in