BMC 2019+ BMW M135i xDrive / 2019+ BMW M235i xDrive Gran Coupe Replacement Panel Air Filter

BMC Air Filter for BMW M135i xDrive / M235i xDrive Gran Coupe (2019+) - FB01091

Upgrade your 2019+ BMW M135i xDrive or M235i Gran Coupe with the BMC high-flow drop-in panel air filter (FB01091). Boost airflow, throttle response, and engine protection.

Elevate the breathing capabilities of your performance B48 engine with the BMC Replacement Panel Air Filter (Part # FB01091), engineered specifically for the 2019+ BMW M135i xDrive (F40) and 2019+ BMW M235i xDrive Gran Coupe (F44).

Developed through rigorous testing and technology derived directly from Formula 1 racing, BMC air filters are crafted to maximize airflow without compromising engine protection. Unlike standard restrictive factory paper filters, BMC utilizes a multi-layered oiled cotton gauze media contained between epoxy-coated alloy wire meshes. This construction guarantees higher air permeability, allowing a significantly greater volume of fresh air to enter your turbocharger system.

Designed as a direct drop-in replacement, this panel filter fits seamlessly into your BMW’s factory airbox with zero modifications needed. The filter features a full-moulding polyurethane frame manufactured without welded joints, eliminating weak points and preventing air leakage under high suction pressure. Additionally, BMC’s advanced filtration captures microscopic impuriies down to 7 microns (compared to the typical 10-micron threshold of factory paper elements), protecting your engine while maximizing horsepower and torque delivery.

Best Uses

1. Daily Performance Driving: Improves overall air induction, yielding smoother throttle response during everyday commutes and spirit highway pulls.
2. Track & Autocross Days: Helps maintain cooler intake temperatures and consistent airflow under high-RPM and heavy-boost conditions.
3. Stage 1 / ECU Tuned Vehicles: Ideal supporting upgrade for remapped or tuned B48 engines that demand higher airflow volumes than factory paper filters can provide.
4. Long-Term OEM+ Maintenance: Replaces disposable OEM paper filters with a high-grade, washable alternative that lasts the life of the vehicle.

Features

1. Multi-Layered Oiled Cotton Gauze: Provides high air permeability and maximum airflow while retaining superior filtration capabilities.
2. Epoxy-Coated Alloy Mesh Structure: Offers high structural rigidity while preventing corrosion and oxidation caused by humidity or fuel vapors.
3. Seamless Single-Mould Polyurethane Frame: Engineered without welded joints to ensure structural integrity and a leak-free seal inside the airbox.
4. Precision 7-Micron Filtration: Efficiently stops dirt, dust, and micro-particles down to 7 microns, outperforming OEM paper filters.
5. Direct Drop-In OEM Fitment: Tailored specifically for the factory airbox of 2019+ BMW M135i/M235i models for hassle-free installation.

Benefits

1. Increased Power & Acceleration: Higher airflow rates result in improved throttle response, enhanced turbo spool, and gains in horsepower and torque.
2. Washable & Reusable: Designed to be cleaned and re-oiled with a BMC cleaning kit, eliminating the need to repeatedly buy disposable air filters.
3. Superior Engine Protection: Advanced filtration captures fine contaminants before they reach the turbocharger and engine internals.
4. Cost-Effective Upgrade: Pays for itself over time through reusable maintenance while boosting vehicle efficiency.
5. Preserves Factory Setup: Delivers high-flow performance gains while keeping the clean look and fitment of the original airbox layout.