BMW 3.5" EURO HFM OBD1 E36 325 M3 E38 740i E31 840ci 540i INTAKE AIR FLOW METER MAF
This is your opportunity to purchase (1) BRAND NEW Mass Air Flow Meter (HFM). If you are looking for the best bang-for-the-buck performance upgrade for your BMW 3-Series, 5-Series, M3 or Z3, this is it!! This is also an OEM replacement/upgrade part for OBD1 BMW E36 325, M3 (Inline 6) & E39 540i, BMW E38 740i (4.0L V8 engines). The diameter of this EURO HFM is 3.5",vs. 3.0" which comes on US version BMW's. The 3.0" US version manifold is a VERY restrictive bottleneck in the intake system, which when upgraded with this 3.5" unit, it is dyno proven to 10+ Real Horsepower on the BMW E36/E38/E39 AND increased gas mileage (mpg) and fuel efficiency with the correct software! If used as an upgrade, may require 3 inch to 3.5 inch adapters. Best when used combined with other performance software & engine upgrades. 100% Smog / Emissions Legal. Easy picture instructions can be found online. I've taken many high resolution photos below so there is no excuse for this not fitting your c