Downpipe BMW E90, E91, E92, E93 316d, 318d, 320d, 320xd N47, N47N

(76 mm) downpipe developed for BMW 3 Series models equipped with N47 and N47N diesel engines. Designed by KPerformance, this full-diameter upgrade ensures a precise bolt-on installation while significantly improving exhaust gas flow. By lowering backpressure, it supports quicker turbo response, smoother power delivery, and a deeper, sportier exhaust sound.

Compatible Vehicles

BMW 3 Series (2007–2012): E90 / E91 / E92 / E93

• 316d (85 kW / 116 hp) – N47, N47N

• 318d (100 kW / 136 hp) – N47, N47N

• 318d (105 kW / 143 hp) – N47, N47N

• 320d EfficientDynamics (120 kW / 163 hp) – N47N

• 320d (130 kW / 177 hp) – N47

• 320xd (130 kW / 177 hp) – N47

• 320d (135 kW / 184 hp) – N47N

• 320xd (135 kW / 184 hp) – N47N

If your exact variant is not listed, please check our other available products or contact us for confirmation.

Technical Specifications

• Direct bolt-on installation

• Manufactured from high-quality SS304 stainless steel (1.5 mm wall thickness)

• Main pipe diameter: 3″ (76 mm)

• Turbo flange diameter: 83 mm

• Connection to factory exhaust system: 61 mm

• 1 port for lambda (oxygen) sensor

• 1 port for EGT (exhaust gas temperature) sensor

• 1 fitting for pressure sensor hose

OE reference numbers:
18307812283 / 7812283
18307812287 / 7812287
18307812285 / 7812285
18307823349 / 7823349
18307812279 / 7812279
18307808739 / 7808739

Engineered for durability, precise compatibility, and noticeable performance improvements in both stock and tuned applications.