N54 E90 E92 E82 E60 Z4 sDrive35i Drop-In Air Filter BMS Part #100-001

For the N54 engine in your E90, E92, E82, E60 or Z4 sDrive35i - this BMS drop-in air filter replaces the paper unit without cutting, drilling or swearing at the airbox.

• Stage 1 fast road & track day fit: flows 45% more than stock while retaining filtration integrity - no check engine lights, no MAF drama
• Direct-fit for N54 only: not for N55, S55 or B58 - those need different media and sealing geometry
• Reusable for life: clean with BMS-approved solution every 40,000 miles; no re-oiling required
• Works with stock intake & tuned maps: verified on stage 1, decat, and OEM plus setups - zero throttle lag or hesitation
• Not a show car gimmick: gains are real but subtle - think sharper mid-range, cleaner throttle response, not +50bhp claims

Compatible with all N54 chassis: E90/E91 335i (2006-2010), E82/E88 135i (2006-2010), E92/E93 335i & 335is (2007-2013), E60/E61 535i (2008-2009), Z4 sDrive35i (2009-2016). Part #100-001.