MST Performance Cold Air Intake – BMW X3 M40i / X4 M40i (G01/G02) B58

OVERVIEW

The MST Performance Cold Air Intake replaces the restrictive factory airbox on the G01 X3 M40i and G02 X4 M40i, feeding the B58 turbo cooler air through a black powder-coated intake pipe and high-flow dry cone filter for sharper throttle response and a sportier induction note — a direct bolt-on.

SPECS

• Black powder-coated aluminum intake pipe
• High-flow dry cone air filter (OFI-89115) — clean ~20,000 km, replace ~60,000 km
• Powder-coated heat shield delivers cold air to the turbocharger
• Improved throttle response and induction sound; direct fit

PARTS INCLUDED

• Intake pipe
• High-flow dry cone filter
• Heat shield
• Mounting hardware

TECH RESOURCES

• Direct bolt-on — no tune required
• Not CARB compliant; for off-road / racing use only
• Not compatible with 2025+ B58 Gen3 engines
• Professional installation recommended

PART NUMBER

• BW-X301

VEHICLE APPLICATIONS