aFe MagnumFORCE Spare Parts AIS Coupling Reducer: (3-1/2 x 2.80)ID x 2LThis MAF adaptor allows for the use of the high performance Euro MAF sensor on US domestic market (USDM) E36 M3. Made of 100% polyurethane, this adaptor has a stainless steel sleeve in the adaptor neck for added rigidity. This coupler inlet diameter is 88. 9mm that matches the Euro MAF and reduces down to 71. 1mm to match domestic throttle bodies.

Developed specifically for vehicles equipped with Audi Magnetic Ride

MFR Part # URO-012780

The hose is constructed from the highest grade european silicone and fabric reinforced allowing it to withstand geater temperatures and negative pressures than the original organic rubber hose

Stage 2 (requires hardware upgrades): +80-90HP & 95-105TQ (ft-lbs) over stock

It combines advanced fiber construction with a premium EPDM rubber compound for exceptional durability and resistance to high-pressure extremes that go hand-in-hand with full-throttle driving

OE Part # 11137552414 / 11-13-7-552-414 / 11 13 7 552 414

6PS and 634

Direct replacement for the factory outlet tips

This cover is constructed of vacuum formed ABS plastic material that bolts right up to the intake housing

OE Part #   33-20-7-839-467 / 33 20 7 839 467 / 33207839467

Sound reflection chamber used to cancel unwanted sound frequency and ensure a deep tone

or 52mm gauge to the steering column of your 2002-2005 Audi A4 1