Downpipe BMW G14, G15, G16 840dX B57

High-quality downpipe for BMW G14, G15, G16 840dX models with B57 engine.

Exclusively designed by KPerformance, our full 4″ downpipe maintains a bolt-on fitment while maximizing exhaust flow and minimizing backpressure, resulting in sharper throttle response, increased performance, and a deeper, more aggressive exhaust tone.

Fits Euro 6 vehicles with a 2-bolt flange-to-exhaust setup and a factory AdBlue/SCR system, which is bypassed when our pipe is installed.

FITS THESE BMW MODELS:

BMW 8 Series: G14, G15, G16 [2018-2020]
840dX (235kw / 320hp) – B57

Not compatible with B57R engines equipped with the Mild Hybrid (eBoost) system.

Note: If your model is not listed here, look for it under another product. If you cannot find your model anywhere, contact us for assistance.

SPECIFICATION:

• Direct bolt-on fitment
• Stainless steel (SS304, 1.5mm)
• Downpipe diameter: 4″ (101.6mm)
• Flange to turbine diameter: 105mm
• Connection to exhaust (stock): 4″ (101.6mm)
• Removes OEM AdBlue (SCR) inlet flange
• Two sockets for lambda (oxygen) sensors
• Two sockets for temperature (EGT) sensors
• Two pipes for the pressure sensor hoses

OE reference numbers: 18 32 8 580 685, 18328580685, 8580685, 8581854, 8581857, 8581880, 8581883, 858176703, 12100010, 18945311