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ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES
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ARM BMW F01 750I N63 / N63TU 3" CATLESS DOWNPIPES

N63DP
Out of stock Many in stock
Exhausts/Downpipes
$397.00
$397.00

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HIGHLIGHTS

• Gain up to +43whp / 48wtq
• Improved Turbo Spool
• Enhanced Exhaust Note
• Fully Reversible
 

PROFILE

ARM Motorsports' new N63/N63TU downpipes for the 4.4L V8 Twin-Turbo powered 750i allows you to take your N63/N63TU engine to the next level. Made with full 304 Stainless Steel and 3" construction these downpipes provide a significant increase in power and torque over the OEM catted downpipes. In addition to the massive power gains, these downpipes open up an incredible exhaust sound from the turbocharged V8 that will shock and awe onlookers!






 
By replacing the OEM downpipes with the ARM Catless Downpipes, you'll be removing the restriction from the OEM converters which will reduce exhaust back-pressure and allow the exhaust from the turbochargers to flow more freely. This increase in exhaust flow allows for the turbos to spool faster, increasing power and torque throughout the RPM range of your 750i. 
 

DYNO PROVEN

Our test car was an N63-equipped 2012 550i GT optioned with the all-wheel drive xDrive system. It came with a Stage 2 tune installed making our baseline numbers 412awhp and 482awtq. After installing the ARM 3" Downpipes and Cold Air Intake, we recorded gains of 48whp and 43wtq over the standard Stage 2 tune for an impressive total of 460awhp and 525awtq. 
 
N63 Downpipes Dyno
 

CONSTRUCTION

As with all BMW's, everything is designed to fit in a very compact space, and the N63/N63TU 750i downpipes are no exception. However, BMW did an excellent job of engineering the downpipes to flow in the smoothest path from the turbocharges down to the mid pipe section. Our downpipes essentially followed the same exhaust flow path with a few small modifications to make installation easier. Consequently, the ARM N63/N63TU downpipes mount up to the turbos and midpipes with the same precision as you would expect from the factory 750i downpipes. 
 
N63 Downpipes F10 550i Exhaust
 
The ARM N63/N63TU 750i downpipes come with a flex section to relieve stress between the upper and lower portion of the downpipe from engine movement during aggressive driving. To further reduce any tension on the turbochargers, we have developed an upper and lower bracket, one being on the section of pipe above the flex joint where it secures to the engine block, and the other on the lower portion below the flex joint where it is secured to the transmission housing. These are the same points BMW designed their factory 750i downpipes to be secured, which means a strong and lasting connection safe for all the components on the vehicle.
 
N63 Downpipes F10 550i Exhaust
 
The ARM N63/N63TU 750i Downpipes utilize two O2 sensor bungs on each downpipe to allow for reinstalling the O2 sensors in their factory locations. This not only allows for the accommodation of the factory heat shield, but also allows the correct O2 sensor data to be sent to the DME. This is essential for the DME to properly monitor the parameters in the exhaust that are critical to having your 750i motor running smoothly. 
 

CEL DELETE KIT

The installation of catless downpipes on your N63/N63TU will result in an inevitable check engine light (CEL) as the DME will detect that emissions are not being burnt-up by the OEM catalyst.  To remove this CEL without having to tune it out we offer the CEL Delete Kit which is comprised of two O2 sensor spacers specifically calibrated to comply with BMW's parameters for a functioning catalyst.  These install into the post-catalyst O2 sensor bungs on each N63 Downpipe, effectively removing the CEL that would otherwise appear.
 

IN THE BOX

• ARM N63 3" Catless Downpipes
• ARM Crush Brackets
• Hardware Kit

  

FITMENT GUIDE

The ARM N63/TU Catless Downpipes are compatible with the cars on the list below that have a slip-fit style OEM downpipe only. The most reliable and accurate way is to simply look under your vehicle for the connection point between the downpipe and mid pipe. In most cases, this is visible without having to remove any undertrays or covers. If your connections look like the images below and your car is listed on the fitment chart, these will fit your vehicle. 

Make Chassis Model Engine
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 650iX N63/TU 4.4L
BMW F13 650i N63/TU 4.4L
BMW F13 650iX N63/TU 4.4L
 
 
N63 Downpipes F10 550i Exhaust

N63 Downpipes F10 550i Exhaust

ARM MOTORSPORTS LIFETIME WARRANTY

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.
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