Performance Air Filter for Audi A4 A5 Q5 TSI TFSI Engines

Advanced Induction Management for Audi B9 Chassis: EA888 Gen 3 & EA839 V6 Engines

Who It’s For: Engineered for Audi A4, A5, and Q5 owners running the EA888 (2.0T) or the high-output EA839 (3.0T) powerplants who want to eliminate the intake breathability bottleneck inherent in the factory design.

The Symptom: The factory intake system on the B9 platform is built to satisfy strict drive-by noise regulations, not to optimize the volumetric efficiency of your turbocharger. The stock paper filter is dense and restrictive, creating a significant pressure drop as the turbo tries to pull air through the intake tract. This results in a perceptible delay in boost threshold and a stifled top-end where the engine feels like it’s working against a vacuum during high-RPM pulls.

The Engineering Fix: This BMC High-Performance system utilizes a multi-layered cotton gauze media that significantly reduces air resistance while improving filtration density. By moving from a surface-loading paper filter to a depth-loading oiled cotton media, we allow for a more laminar airflow path into the turbo inlet. This increased air density at the compressor wheel means the turbo reaches target boost pressures more efficiently, sharpening the throttle snap that these TSI and TFSI engines are known for.

Why Mechanics Choose This Kit

• Optimized Pressure Delta: By reducing the intake restriction, the EA888 and EA839 engines experience lower pumping losses, translating directly to improved torque delivery in the mid-range.
• Motorsport-Grade Filtration: While standard filters stop at 10 microns, this system captures impurities as small as 7 microns, providing superior protection for the sensitive internals of your turbocharger and cylinder walls.
• Structural Integrity: The "Full Moulding" system creates a single-piece rubber frame without weak welded joints, ensuring a perfect airtight seal against the factory airbox housing even under high heat and vibration.

Technical Specifications

Interchange Part Numbers:

FB960/04

The Performance Promise

Buy with confidence. This is a lifetime upgrade; simply clean and re-oil with a regeneration kit every 15,000 miles to maintain peak flow. Backed by real automotive experts and fast shipping.