Description
Take your BMW N63/N63TU 4.4L Twin-Turbo V8 to the next level with the ARM Motorsports 3-Inch Catted Downpipes. Engineered for maximum performance and reliability, these downpipes deliver gains of up to +43whp and +48wtq while improving turbo spool and unlocking an aggressive exhaust note.
Constructed from full 304 stainless steel with a 3-inch design, the ARM N63/N63TU Catted Downpipes feature high-flow 200-cell ceramic sport catalytic converters mounted in the OEM location. They maintain nearly identical performance gains to a catless setup while retaining the benefits of a catted exhaust system, including reduced emissions and improved drivability.
Each set is built for precision fitment, following the smoothest possible exhaust flow path while ensuring an easy bolt-on installation. A flex section relieves stress from engine movement, and a lower bracket mounts to the transmission housing, just like OEM, to provide lasting durability and reduce strain on the turbos.
Key Features:
- Gains of up to +43whp / +48wtq
- Improved turbo spool and throttle response
- Aggressive, turbocharged exhaust note
- 200-cell high-flow sport catalytic converters
- 3" full 304 stainless steel construction
- Flex joint and lower support bracket for durability
- Direct bolt-on installation, fully reversible
What’s in the Box:
- (2) ARM N63 3" Catted Downpipes
- (2) ARM Crush Brackets
- (1) Hardware Kit
Vehicle Fitment:
BMW F01 750i – N63/TU 4.4L
BMW F01 750i xDrive – N63/TU 4.4L
BMW F01 Alpina B7 – N63/TU 4.4L
BMW F02 750Li – N63/TU 4.4L
BMW F02 750Li xDrive – N63/TU 4.4L
BMW F06 650i – N63/TU 4.4L
BMW F06 650i xDrive – N63/TU 4.4L
BMW F06 Alpina B6 xDrive – N63/TU 4.4L
BMW F07 550i – N63/TU 4.4L
BMW F07 550i xDrive – N63/TU 4.4L
BMW F10 550i – N63/TU 4.4L
BMW F10 550i xDrive – N63/TU 4.4L
BMW F12 650i – N63/TU 4.4L
BMW F12 650i xDrive – N63/TU 4.4L
BMW F13 650i – N63/TU 4.4L
BMW F13 650i xDrive – N63/TU 4.4L
BMW G30 M550i – N63R 4.4L
BMW G30 M550i xDrive – N63R 4.4L
BMW G05 X5 xDrive50i – N63R 4.4L
BMW G05 X5 M50i – N63R 4.4L
BMW G11 750i / xDrive – N63R 4.4L
BMW G12 750i / xDrive – N63R 4.4L
BMW G14 850i / xDrive – N63R 4.4L
BMW G15 850i / xDrive – N63R 4.4L
BMW G16 850i / xDrive – N63R 4.4L
BMW G06 X6 M50i – N63R 4.4L
BMW G07 X7 M50i – N63R 4.4L
With proven power gains, precise OEM-style fitment, and durable 304 stainless steel construction, the ARM N63/N63TU 3-Inch Catted Downpipes are the ultimate upgrade for unleashing the full potential of your twin-turbo BMW V8.
