Our own high quality reinforced silicone throttle body boot for the BMW E36. The inlet side of this boot matches the standard mass air meter (Diameter = 3.0"). Used on many stock and forced induction cars to forever eliminate the worry of a cracked boot causing a vacuum leak or boost leak.
Choose between single port for forced induction applications that only use the ICV (Idle Control Valve) port, and dual port for an OE type installation for Naturally Aspirated engines which use both the ICV port and the crankcase PCV port.
If you need a billet plug for another application, those are available separately.
Fits 1992-1999 BMW 325, 328, and M3.