ARM Motorsports BMW 335XI CATLESS DOWNPIPES - N54 AWD
ARM Motorsports BMW 335XI CATLESS DOWNPIPES - N54 AWD
Product Info
• Gain up to +25 whp / 37 wtq • Improved Exhaust Sound • 304 Stainless Steel Construction • Perfect Fitment for N54 AWD Platform ARM Motorsports N54 catless downpipes for BMW 335xi AWD models deliver measurable performance gains by eliminating restrictive OEM catalytic converters. The 3" stainless steel design optimizes exhaust flow from the turbochargers, reducing back pressure and enabling Stage 2+ tune compatibility. Factory O2 sensor bungs allow ECU monitoring while catless operation requires an ECU tune or CEL fix. Engineered specifically for E90, E92, and E93 335xi AWD chassis with N54 3.0L engines. Includes hardware kit and new gaskets for seamless installation. Backed by ARM Motorsports lifetime warranty covering craftsmanship and fitment defects. Designed for off-road use only. ECU tuning required to prevent check engine light.
Fitment Information
House of Apex does our best to ensure we catalog all products as accurately as possible. Please verify fitment with your vehicle to ensure a seamless and smooth install.
For any questions, concerns, or installation help, please email Zac@HouseOfApex.us
Ships directly from the authorized manufacturer partner.
In-stock items: ships within 2–5 business days
Backordered items: typically requires 2–6 weeks
