More responsive, less expensive, easier to install. The material of 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 caps. O-Ring, to engine oils, and high and low temperature. Manifold gaskets to engine oils, and high and low temperature. Application: Larger swirl flaps (33 mm), designed for vehicles manufactured since 2005. For M57 / M57D25 (od 2000) 122 kW (164 ), 350 Nm: For E39 525d (2000-2003) only for cars with automatic gearbox. For M57N / M57TU / M57TUD25 (od 2004) 177 (130 kW; 175 ), 400 Nm: For E60 / E61 525d. For M57 / M57D30 (od 1998) 184 (135 kW; 181 ), 390 Nm: For E39 530d only for cars with automatic gearbox. For E46 330d / 330xd only for cars with automatic gearbox. For M57 / M57D30 (od 1998) 184 (135 kW; 181 ), 410 Nm: For E38 730d only for cars with automatic gearbox. For E53 X5 3.0d. For M57 / M57D30 (od 1998) 193 (142 kW; 190 ), 410 Nm: For E38 730d. For E39 530d. For M57N / M57TU / M57TUD30 (od 2002) 204 (150 kW; 201 ), 410 Nm: For E46 330d / 330Cd / 330xd. For E83 X3 3.0d. For M57N / M57TU / M57TUD30 (od 2002) 218 (160 kW; 215 ), 500 Nm: For E53 X5 3.0d. For E60 / E61 530d / 530xd. For E65 730d. For M57N / M57TU / M57TUD30 (od 2002) 272 (200 kW; 268 ), 560 Nm: For E60 / E61 535d. For M57N / M57TU / M57TUD30 (od 2002) 231 (170 kW; 228 ), 500 Nm: For E90 / E90LCI / E91 / E91LCI / E92 / E93 335d. Colour: Silver+Red Material: Metal Package Contents: 6 * Swirl Flap Bung 13 * Gasket Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.