Endura - Downpipe BMW M850i xDrive G1x N63B 4.4 V8 - catback / Sports cat - Heat shield

Upgrade your BMW M850i xDrive with the Endura Motorsport Downpipe, designed for the powerful N63B 4.4 V8 biturbo engine. This Downpipe is suitable for both OPF and NON OPF models and fits vehicles manufactured from 2018 up to and including 2022. Thanks to the improved exhaust gas flow, you’ll benefit from more power, more torque and a sportier V8 sound.

The first section of the Downpipe features heat shielding for optimal heat management in the engine compartment. Thanks to its four-piece construction, the set connects directly to the original flange connections and is fully plug-and-play. The Downpipe is hand-crafted from high-quality 304 stainless steel and fully TIG-welded for maximum durability.

Benefits

• Improved
exhaust gas flow• Increased power and faster throttle
response• Deeper and sportier V8 sound•
Four-piece construction with heat
shield• Made entirely from 304 stainless steel with TIG
welding• 100 per cent fit guarantee on original connection points

Technical specifications

• Model: BMW M850i xDrive V8 N63B 4.4•
Chassis codes: G14, G15, G16•
Model years: 2018 to
2022• Suitable for OPF and NON-OPF
models• Material: 304
stainless steel• Connection dimensions match original flange connections•
As an upgrade replacement for OEM part numbers 18 32 8 690 401, 18 32 8 690 402, 18 30 8 482 883, 18 30 8 482 885

Available options

• decat version for maximum flow and
sound• Sportcat version with high-flow sports catalytic converter

Contents

• Endura Motorsport Downpipe with heat shield•
Fitting hardware

Frequently asked questions

Does this Downpipe fit OPF and NON OPF models?
Yes, this Downpipe is suitable for both OPF and NON OPF versions of the BMW M850i xDrive from model years 2018 to 2022 inclusive.

What is the difference between the decat and sport cat versions?
The decat version offers maximum gas flow and the loudest sound. The sport cat version is slightly quieter and better suited to everyday use.

Will I get fault codes?
When using the decat version, there is a high likelihood of fault codes. With the sportcat version, the likelihood is lower, but software optimisation is recommended.

Is installation plug-and-play?
Yes, the Downpipe connects directly to the original flange connections without any modifications.