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Description
BMW N63R & N63B Catless Downpipe For M550i, 750i, M850i, X5, X6, X7 (G Series)ARM Motorsports' N63R N63B downpipes for the 4. 4L V8 Twin Turbo powered G Series allow you to take your BMW to the next level. Made with full 304 Stainless Steel and 3" construction these downpipes open up an incredible sound from the twin turbocharged V8 even with the stock exhaust! By replacing the OEM downpipes with the ARM G Series Catless Downpipes, you'll be removing the restriction from the OEM converters which will reduce exhaust back
ARM Motorsports' N63R/N63B downpipes for the 4.4L V8 Twin-Turbo powered G-Series allow you to take your BMW to the next level. Made with full 304 Stainless Steel and 3" construction these downpipes open up an incredible sound from the twin-turbocharged V8 even with the stock exhaust!By replacing the OEM downpipes with the ARM G-Series 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 BMW.
HIGHLIGHTS
• Improved Turbo Spool• Enhanced Exhaust Note
• Fully Reversible
CONSTRUCTION
As with all BMWs, everything is designed to fit in a very compact space, and the G-Series 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 airflow smoother and installation easier. Consequently, the ARM N63R downpipes mount up to the turbos and mid-pipes with the same precision as you would expect from the factory N63R/N63B downpipes.The ARM G-Series downpipes come with a flex section to relieve stress between the upper and lower portion of the downpipe. 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. These are the same points BMW designed their factory M550i downpipes to be secured, which means a strong and lasting connection safe for all of the components on the vehicle.
The ARM G-Series downpipes utilize two O2 sensor bungs on each downpipe to allow for reinstalling the O2 sensors in their factory locations. This allows the correct oxygen sensor data to be sent to the DME. This is essential for the DME to properly monitor the fuel mixture in the exhaust gas that is critical to having your M550i motor running smoothly.
IN THE BOX
• ARM G-Series 3" Catless Downpipes• ARM Crush Brackets
• Hardware Kit
FITMENT GUIDE
| Make | Chassis | Model | Engine |
| BMW | G30 | M550i | N63R 4.4L |
| BMW | G30 | M550i xDrive | N63R 4.4L |
| BMW | G05 | X5 xDrive50i | N63M 4.4L |
| BMW | G05 | X5 M50i | N63B 4.4L |
| BMW | G11 | 750i / xDrive | N63R 4.4L |
| BMW | G12 | 750i / xDrive | N63R 4.4L |
| BMW | G14 | M850i / xDrive | N63B 4.4L |
| BMW | G15 | M850i / xDrive | N63B 4.4L |
| BMW | G16 | M850i / xDrive | N63B 4.4L |
| BMW | G06 | X6 M50i | N63B 4.4L |
| BMW | G07 | X7 M50i | N63B 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.
This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles that may never be used on a public road.
This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles that may never be used on a public road.
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
4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Super Natural Non Stripping
Scent: Lavender, Size: 16 Fl Oz (Pack of 1)
Love This Company and Their Products, Feels Super Natural and Non Stripping
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 3
Honestly I'm disappointed
Scent: Refreshing, Size: 16 Fl Oz (Pack of 1)
I had very high hopes for this body wash. This brand is well known, and a brand that I have loved for a couple years now. Nearly every Pur A'dor product I have ever tried, I have loved. Until this one. I expected a high quality, great smelling, skin softening body wash. What I got was something that smells very medicinal or chemical like. I did not, however, have any negative skin reactions to it, and it did leave my skin feeling adequately hydrated and soft. The scent though, is just not something I am able to enjoy at all. I have tried it several times, hoping the scent would grow on me, or somehow Improve, but it hasn't. At this point, I have put it to the side, and started using another product instead. I was thrilled to have caught a body wash by this brand on sale for $12, but I guess now I see why it was discounted so much. I'm not sure. This is not the norm for this brand at all. Hoping this is a one time fluke.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025
★★★★★ 5
Fantastic!
Scent: Lavender, Size: 16 Fl Oz (Pack of 1)
I love this body wash. I have really bad allergies. I ordered other products recommended by doctors and even those still made my skin itch. This product is the only one that has not made me itch AND it smells FANTASTIC!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Such a pretty bottle and it feels so great on skin!
Size: 1.7 Fl Oz (Pack of 1), Size: 1.7 Fl Oz (Pack of 1)
I was so excited to try this serum, and honestly, it did not disappoint. What first caught my eye was the packaging—I’m a sucker for pretty bottles, and this one is stunning with its shimmery, rainbow-like colors. Even the serum itself has a subtle shimmer that matches the bottle, which I absolutely love.
The scent was the first thing I noticed. It has a light floral smell with a hint of honey, almost like a soft version of the old Sweet Pea scent from Bath & Body Works. It’s not overpowering at all. You only really smell it when dispensing or applying it—once it’s on your skin, the scent completely disappears. No headaches, no lingering fragrance.
Application-wise, this serum is silky smooth and spreads beautifully. It made me realize my skin wasn’t as soft as I thought—because after using this, my skin felt noticeably softer, hydrated, and plump. It absorbs well and leaves my skin feeling nourished without being greasy.
It does contain retinol, so the warnings about avoiding the eye area and limiting sun exposure are important. I’ll definitely be pairing this with a good hydrating sunscreen, especially during daytime use. I plan to ease into it by using it once or twice a week until my skin fully adjusts.
Overall, I love everything about this serum—the packaging, the light scent, the texture, and the results. My skin feels smooth, hydrated, and healthy. This is definitely a product I’m excited to keep using and would happily recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
★★★★★ 5
The best serum!
Size: 1 Fl Oz (Pack of 1)
This is the best face serum, and the price is unbeatable. It makes my face feel silky smooth and hydrated for the whole day. I will not use anything else.
Plus, it smells good. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
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