Eventuri N55 Panel Filter - BMW F87 M2 | F20/F21 M135i | F22 M235i | F30/F31 335i | F32/F33 435i F13 The high-quality springs made of

The high-quality springs made of chrome-silicon steel have spring rates which are vehicle specific adjusted to the respective standard suspension dampers and wheel loads

Additional 65-70 hp on a stock vehicle

The flat polyurethane insert installed from BMW does not match the M3/4’s aerodynamically sculpted exterior

Available with (Circuit) or without (Street) harness slots

Eventuri N55 Panel Filter - BMW F87 M2 | F20/F21 M135i | F22 M235i | F30/F31 335i | F32/F33 435i F13 The high-quality springs made ofDirect replacement for your original equipment panel filters Polyurethane filters which won't deform from heat Dry filters to protect MAFs from being covered in oil