If you've upgraded to the 3.5" Euro, 540i or Porsche HFM you know how much of a difference reducing intake restriction makes on these engines. This Samco silicone intake boot is the perfect mate for cars that have been upgraded with the 3.5" HFM, as it doesn't require any reducers or adapters (which impair air flow). Unlike the factory rubber intake boot, which has an accordian-like shape that causes turbulence, this boot has a smooth interior surface for best possible air flow. When coupled with the 3.5" HFM this makes for the best possible flow to the throttle body and intake manifold.

This intake boot assumes your car either is not equipped with traction control system (ASC) or it has been (or will be) deleted. We offer an intake boot plug if you are deleting ACS.

This Samco silicone intake boot fits the following BMWs:
1995-1999 E36 M3 with 3.5" HFM & ASC delete
1998-2000 MZ3 M Roadster/Coupe with 3.5" HFM & ASC delete