Yes It's Stock Officer T-Shirt N55 FEATURES OF THIS VALVED EXHAUST

FEATURES OF THIS VALVED EXHAUST

designed specifically for Pre-LCI F97 X3M and F98 X4M models (2019–2021)

This service is the least intrusive and will involve draining and refilling your transmission (drain and fill)

Each downpipe has two O2 sensor bungs so the factory BMW O2 sensors can be remounted allowing the ECU to continue to monitor the air/fuel mixture via the exhaust

When doing this service it is recommended to replace the filter as well

Yes It's Stock Officer T-Shirt N55 FEATURES OF THIS VALVED EXHAUSTDo you enjoy putting your engine in places they don't belong? Maybe you are an avid LS Swap enthusiast, or perhaps a 2JZ swap enthusiast? Whatever your flavor of motor swap, this shirt will be sure to put a smile on your face! Join us in representing those who enjoy the finer things in life! If cars are your passion and engine swaps are something that fascinate you, this is the shirt for you to wear! Your car enthusiast friends will love this design