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Description
2 Bolt Flange N63 Downpipe For BMW F01/F02 750i & F07/F10 550i 4.4LARM Motorsports new N63 Downpipes with the 2 Bolt midpipe flange for the 4. 4L V8 Twin Turbo powered 550i allows you to take your N63 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
ARM Motorsports new N63 Downpipes with the 2-Bolt midpipe flange for the 4.4L V8 Twin-Turbo powered 550i allows you to take your N63 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!
• Gain up to +43whp / 48wtq
• Improved Turbo Spool
• Enhanced Exhaust Note
• Fully Reversiblepeerform
• Improved Turbo Spool
• Enhanced Exhaust Note
• Fully Reversiblepeerform
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 550i.
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.CONSTRUCTION
As with all BMW's, everything is designed to fit in a very compact space, and the N63 550i 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 downpipes mount up to the turbos and midpipes with the same precision as you would expect from the factory 550i downpipes.The ARM N63 550i 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 a lower bracket, on the lower portion below the flex joint where it is secured to the transmission housing via a crush bracket.
The ARM N63 550i 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 upper 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 550i motor running smoothly.
SOUND CLIPS
IN THE BOX
• ARM N63 3" Downpipes
• ARM Crush Brackets
• Hardware Kit
FITMENT GUIDE
The ARM N63 Catless Downpipes are compatible with the cars on the list below that have a 2-Bolt 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 4.4L |
| BMW | F01 | 750i xDrive | N63 4.4L |
| BMW | F02 | 750Li | N63 4.4L |
| BMW | F02 | 750Li xDrive | N63 4.4L |
| BMW | F07 | 550i | N63 4.4L |
| BMW | F07 | 550i xDrive | N63 4.4L |
| BMW | F10 | 550i | N63 4.4L |
| BMW | F10 | 550i xDrive | N63 4.4L |
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
Very versatile!
Color: Colorful Pink
I got this iPad case for myself and my two year-old daughter as we both use this iPad. This case has definitely held up very well. I love the material because it’s nonslip so it’s easy for my two-year-old to hold I also love the movable and adjustable prop on the back that also doubles as a handle. There is two spots to put your Apple Pencil, so that’s very neat. It is a little bit bulky, but it is very protective and I think that is a good trade-off. There is also a cover for the charging port to prevent dust from getting in there or any spills. At first I was a little bit weary about it having a built-in screen protector, but it’s very clear and does not interfere with using the screen at all, so it’s actually a nice touch. I really love this thing and think it is worth it!
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Great case
Color: Purple Pink
My daughter loves it and the color is marvelous. It was easy to put on, I would buy again worth my money. Very sterdy as good for kids that love to drop their tablet. I like how its has a strap so your kid can carry it on their over there shoulders.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Case
Color: Purple Pink, Color: Purple Pink
Calificado en Estados Unidos el 15 de febrero de 2026
Color: Púrpura Rosa
bought this case for my daughter.The fit is perfect — all the buttons and camera line up exactly and it snaps on securely.The case feels sturdy, protective, and durable but not too heavy, so she can still carry it comfortably.The stand feature is convenie…
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Quality
Color: Black
Fits perfectly! Great for kids who are rough on iPads. Seems indestructible
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Good buy
Color: Purple Pink
Everything as pictured good quality and durable only thing I didn’t like is the strap isn’t adjustable.
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Reviewed in the United States on April 3, 2026