High-Flow Air Filtration for BMW M20 Straight-Six and M40/M42 Series Engines Who It’s For: Designed specifically for BMW enthusiasts maintaining or tuning classic chassis like the E30, E34, and E36, as well as V12-powered E31 and E32 models running the M20 Straight-Six or M40/M42 engine families. The Problem: The M20 Straight-Six and its contemporary four-cylinder siblings were designed with restrictive, disposable paper filters that prioritize intake silence over efficiency. These stock filters quickly become a bottleneck, especially as they accumulate dust, choking the engine’s ability to breathe at higher RPMs where these BMW engines naturally want to perform. The Solution: This BMC performance filter replaces the restrictive paper media with multi-layered cotton gauze treated with low-viscosity oil. We use this specific upgrade to drop the filtration threshold to 7 microns while significantly increasing the air volume entering the plenum. It allows your BMW to maintain peak volumetric efficiency without the need for a noisy, heat-soaking open-pod intake. Why This is the Ultimate Upgrade Enhanced Flow Dynamics: Utilizes an epoxy-coated alloy mesh to maintain pleat geometry under heavy vacuum, ensuring consistent airflow even during spiritied driving. Full Moulding Construction: Unlike cheaper filters that are glued together, this uses a "Full Moulding" system with no welded joints, eliminating the risk of the filter frame cracking or separating over time. Regenerative Design: This is the last filter you’ll buy. It is fully washable and can be re-oiled using a standard regeneration kit, maintaining factory-level fitment with aftermarket performance. Technical Specifications Fitment 1981-2000 BMW 3, 5, 7, 8 Series, Z1 Engine Family M10, M20, M40, M42, M43, M70, M73, S70 Factory Ratings 100 HP to 416 HP (Configuration Dependent) Part Numbers bmcFB117/01 Compatibility & OEM Reference Fits the Following Vehicles: Bertone Freeclimber 1.6 FC2 (M40B16) 1992-1999 Bertone Freeclimber 2.0 FC1 (M20B20) 1990-1993 Bertone Freeclimber 2.7 FC1 (M20B27) 1990-1993 BMW 3 (E30) 316i 1.6 (M40B16) 1987-1994 BMW 3 (E30) 318i 1.8 (M10B18 / M40B18) 1984-1994 BMW 3 (E30) 318is 1.8 (M42B18) 1989-1991 BMW 3 (E30) 320i 2.0 (M20B20) 1982-1993 BMW 3 (E30) 325e / 325i / 325ix (M20B25 / M20B27) 1983-1993 BMW 3 (E36) 316i / 318i / 318is (M40B16 / M40B18 / M43B18 / M42B18) 1990-1999 BMW 3 Compact (E36) 316i (M43B16) 1994-2000 BMW 5 (E28) 520i / 525e (M20B20 / M20B27) 1981-1990 BMW 5 (E34) 518i / 520i / 525i (M40B18 / M43B18 / M20B20 / M20B25) 1988-1996 BMW 7 (E32) 750i / 750iL (M70B50 - Requires 2 Filters) 1987-1994 BMW 8 (E31) 850i / 850Ci / 850CSi (M70B50 / M73B54 / S70B56 - Requires 2 Filters) 1989-1999 BMW Z1 2.5 (M20B25) 1988-1991 Alpina B12 5.0 / 5.7 V12 (E31) 1990-1996 Alpina B3 2.7 / C1 2.3 / C1 2.5 / C2 2.5 / C2 2.7 (E30) 1983-1992 Alpina Roadster 2.7 (Z1) 1990-1991 Interchange Part Numbers: bmcFB117/01, FB11701 The Performance Promise Buy with confidence. As specialists in European performance, we only stock components that meet or exceed the requirements of the M20 Straight-Six engine family. Your BMW deserves the same filtration technology used by top-tier racing teams.
Related
Related
Related
Related