BMW B47, N47N, N47S1 Downpipe

63mm Downpipe without catalyst or particulate filter for the following models with B47, N47N and N47S1 engines:

• BMW 1-Serie F20 114D, 116D, 118D(X), 120D(X), 125D
• BMW 1-Serie F21 114D, 116D, 118D(X), 120D(X), 125D
• BMW 2-Serie F22 218D, 220D(X)
• BMW 2-Serie F23 218D, 220D(X)
• BMW 3-Serie F30 316D, 318D(X), 320D(X), 325D, 328D(X)
• BMW 3-Serie F31 316D, 318D(X), 320D(X), 325D, 328D(X)
• BMW 3-Serie F34 316D, 318D(X), 320D(X), 325D, 328D(X)
• BMW 4-Serie F32 418D, 420D(X), 425D
• BMW 4-Serie F33 418D, 420D(X), 425D
• BMW 4-Serie F36 418D, 420D(X), 425D
• BMW 5-Serie F07 518D, 520D(X), 525D(X)
• BMW 5-Serie F10 518D, 520D(X), 525D(X)
• BMW 5-Serie F11 518D, 520D(X), 525D(X)
• BMW X3 F25 18D, 20DX, 28DX
• BMW X4 F26 20DX

Suited for versions with 95, 116, 143, 150, 184, 190 and 218pk.

Replaces OEM nr:

• 18307823496
• 18308508993
• 18308508994
• 18308513960
• 18308514080
• 18308514988

Please note, there is a difference between cars equipped with a EURO 5 or EURO 6 particulate filter, therefore there is an extra pressure sensor connection on the EURO 6 version.

By installing a larger bore downpipe backpressure in the exhaust drops which makes the turbo rev easier which means the turbo starts building pressure at lower RPM's. If during shifting the pressure drops it also builds back pressure faster. 

By only installing a larger diameter downpipe the horsepower usually rises between 15 and 20hp and torque also goes up by 25 to 30Nm. Combining a downpipe with chiptuning brings even more extra power.

A software update (chiptuning) would be advised.

This product is not intended for use on the open road.