The material of the end caps is the same as of the intake manifold, additionally reinforced with glass fibre. Hardness and durability comparable to that of aluminum.
Lack of differences in the thermal expansion between the manifold and the end caps.
Viton O-Ring, resistant to engine oils, and high and low temperature.
Manifold gaskets resistant to engine oils, and high and low temperature.
Compatible with following engines:
M47N / M47TU / M47TUD20 110 kW (148 HP), 330 Nm
E46 320d/318d (2001-2005)
E83 X3 2.0d (to the end of 2006 r.)
M47TU2D20 (od 2004) 120 kW (161 HP), 340 Nm
E83 X3 2.0d (since 2006)