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The additional O2 sensor bung will come pre-installed with a plug so that you do not need to run the O2 sensor right away
5"/4" piping
Standard Kit comes with Charge Pipe Kit
The factory S55 "J" is secured to the throttle body with a plastic retainer strip
Though this presented another challenge for us as 4
Sports Series High Flow Catted Downpipes 2020+ X3M/X4M S58 Engine JCW The additional O2 sensor bungIntroducing our Sports Series High Flow Catted Downpipes for your twin turbo S58 engine! Fits 2020+ X3M and X4M (F97 F98). Key Features: Made in the USA! Manufactured in house. Now available for the 2020+ BMW X3M X4M S58 Engines! High Flow 200 cell metallic catalytic converter Higher Max Horsepower Power Curve Higher Initial Torque Curve. Torque curve hits faster and higher and longer. Better throttle response and faster turbo spool up times. Mandrel
