aFe P5R Air Filter for BMW 135i/335i 11-12, X1 35iX 11-15

aFe P5R Drop-In Air Filter — High Flow Performance Brand: aFe This listing is for one air filter. Fits BMW 135i and 335i (2011–2012) and X1 35iX (2011–2015), L6-3.0L (N55). The aFe P5R Drop-In Air Filter features a 100% polyurethane boxed frame engineered to deliver reliable, long-lasting performance. Designed as a high-flow, oiled OE replacement, this filter increases airflow over stock units to help improve horsepower and torque while maintaining engine protection. Key Features 100% Polyurethane Frame: Durable boxed design resists warping and maintains a consistent seal. High Flow Media: Five layers of progressively finer cotton gauze mesh for maximum airflow and efficient filtration. Washable & Reusable: Built for multiple cleaning cycles to reduce long-term maintenance costs. Excellent Dust Holding: Tall, evenly spaced pleats increase surface area and extend service intervals. Integrated Urethane Bump Seal: Ensures a tight, leak-free fit throughout the life of the filter. Benefits Expect improved throttle response, potential gains in horsepower and torque, and consistent filtration performance under a wide range of conditions. The P5R drop-in design allows easy installation as a direct replacement for stock filters. Optimize airflow and engine protection with the aFe P5R — a balanced solution for enthusiasts seeking reliable performance upgrades and long-term value.