Founded in 1999, Advanced Flow Engineering (aFe) produces high flow, high performance replacement air filters and complete cold-air intake systems for BMWs. Each precision-engineered intake component and filter offers excellent design and construction, lifetime cleanable cotton filters that breathe easier than paper filters, powder-coated heat shields to block out hot engine air, and measurable performance gains resulting in increased horse power and torque. aFe's reputation is fast growing as a manufacturer and designer of quality and functional intake kits with excellent fit and finish and reasonable cost.
aFe enigneers their kits for each individual model application, even designing air filters from scratch to maximize the available surface area of the low pressure zone. They then offer their intake components in packages that fit your tastes and needs -
Replacement Performance Filter.
A direct performance replacement filter for your stock air box.
Dynamic Air Scoops.
Metal scoops or ducts that create a 'ram-air' effect to the intake.
Super Stock System.
A performance filter combined with Dynamic Air Scoops and Throttle Body Spacer for power gains while keeping the OEM appearance.
Stage 1 Kit.
A cone-filter kit with vehicle-specific heat shield and intake tubing to replace a stock airbox.
Stage 2 Kit.
All of the components in a Stage 1 Kit plus additional intake tubing or ducting after the air box or air mass meter.
A Stage 1 or 2 Kit with an enclosed airbox and heat shield. The filter area is maximized inside a vehicle-specific airbox and then sealed with a cover for a OEM-type appearance.