K&N BMW F90 M5 & F91 F92 F93 M8 S63 Engine High Flow Air Filters

Unlock your BMW’s true performance potential with the K&N High-Flow Air Filters (33-3128), engineered specifically for the BMW F90 M5 and F91/F92/F93 M8 with the S63 4.4L Twin-Turbo V8 engine. Designed to replace your factory filters directly, these precision-built filters deliver measurable gains in horsepower, torque, and throttle response — all while providing superior engine protection and long-term savings.

Each filter is built using four layers of premium cotton gauze, treated with a specially formulated tacking agent to create an intricate filtration mesh capable of trapping up to 99% of harmful contaminants without restricting airflow. The result is cleaner, denser air entering your engine for improved combustion efficiency and sharper throttle response.

Manufactured to exacting standards, K&N’s filters feature rugged construction, a washable and reusable design, and a no-hassle lifetime limited warranty. They’re pre-oiled and ready to install straight out of the box — a simple yet highly effective upgrade that complements both factory and tuned applications.

Key Features

• Engineered for performance: Designed to increase horsepower, torque, and acceleration

• Durable construction: Built using premium materials for long-lasting reliability

• Four layers of protection: Multi-layer cotton gauze filtration with high dust retention

• Washable & reusable: Clean every 75,000 miles under normal driving conditions

• Cost-effective: Reusable design saves money over multiple disposable filters

• Eco-friendly: Reduces waste from single-use air filters

• Easy installation: Direct replacement for OEM filters — no tuning required

• High efficiency: Up to 99% filtration efficiency with maximum airflow

• Lifetime warranty: Backed by K&N’s limited lifetime guarantee

Technical Specification

• Filter Type: Panel

• Material: Cotton Gauze

• Washable: Yes

• Dimensions: 10.375" L x 8.5" W x 1.188" H

• Weight: 2.1 lb (1 kg)

• Included: 2 air filters (pair required)

• Product Line: K&N High-Flow

Compatibility

• BMW F90 M5 (2018–2025)

• BMW F91 M8 Convertible (2020–2025)

• BMW F92 M8 Coupé (2020–2025)

• BMW F93 M8 Gran Coupé (2020–2025)

• BMW 760i / 760i xDrive (2023–2026)

• BMW M760e xDrive (2023–2025)

• Compatible with S63 4.4L Twin-Turbo V8 engines (2 filters required)