Performance Air Filter for Audi A8 (2004-2010) with 5.2L 6.0L V8 W12 Engines

Unleash the V10 BSM & W12 Powerplants: BMC High-Flow Performance Intake Upgrade

Who It’s For: Engineered for Audi A8 and S8 (4E Chassis) owners running the elite 5.2L V10 (BSM) or the 6.0L W12 (BHT/BSB) powerplants who are tired of the stock engine choking under heavy load.

The Symptom: The factory intake system on the Audi 5.2L and 6.0L engines is designed for absolute silence to maintain the flagship luxury cabin experience. However, this silence comes at the cost of performance. The OEM paper filters are dense and restrictive, creating significant pressure drops at higher RPMs. On a heavy chassis like the A8, this results in sluggish tip-in throttle response and a feeling that the engine is working harder than it should to move the vehicle’s mass during overtaking maneuvers.

The Engineering Fix: This BMC performance system replaces the restrictive factory paper media with a multi-layered cotton gauze system soaked in low-viscosity oil. By utilizing a "Full Moulding" production process, the filter is created from a single mould with no welded joints, ensuring structural integrity even under the high-vacuum pressures generated by a 450HP engine. The increased surface area and optimized fluid dynamics allow for a higher volume of air to reach the combustion chambers, capturing impurities down to 7 microns while significantly reducing airflow turbulence.

Why Mechanics Choose This Kit

• Optimized Oxygen Density: By reducing the intake restriction, we allow the BSM and W12 engines to reach their 450HP potential more efficiently, improving the volumetric efficiency of every stroke.
• Induction Clarity: While maintaining luxury standards, this filter allows the natural, sophisticated mechanical symphony of the V10 and W12 to be heard under wide-open throttle.
• Race-Bred Durability: Constructed with an epoxy-coated alloy mesh, these filters are resistant to petrol fumes and oxidation, making them a permanent solution that can be washed and regenerated.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• Audi A8 (4E) 5.2 V10 S8 [FULL KIT] (450 HP) 2006-2010
• Audi A8 (4E) 6.0 W12 [FULL KIT] (450 HP) 2004-2010

Interchange Part Numbers:

FB544/08, FB54408, 5.2L V10 S8, 6.0L W12 A8

The Performance Promise

Buy with confidence. As the Lead Tuner, I only recommend BMC for Audi flagship platforms because their filtration efficiency (98.5%) and structural "Full Moulding" are the only standards high enough for a W12. Backed by real automotive experts and fast shipping.