BMW N63/N63TU 3" Catted Downpipes
$697.00 USD
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$697.00
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*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
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Frequently Asked Questions
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HIGHLIGHTS
• Gain up to +43whp / 48wtq
• Improved Turbo Spool
• Aggressive Exhaust Note
• 200 Cell Sport Catalysts
• Direct Bolt-On, Fully Reversible
• Improved Turbo Spool
• Aggressive Exhaust Note
• 200 Cell Sport Catalysts
• Direct Bolt-On, Fully Reversible
PROFILE
ARM Motorsports new N63/N63TU Catted Downpipes for the 4.4L V8 Twin-Turbo powered 550i allows you to take your N63/N63TU engine to the next level. Designed with the same precision as our N63 Catless Downpipes, the ARM N63 Catted Downpipes feature high-flow 200 cell ceramic sport catalytic converters positioned in the OEM location.
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!
By replacing the OEM downpipes with the ARM N63 Catted Downpipes, you'll be removing the restriction from the OEM converters. This 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 N63.
DYNO PROVEN
Tested on an N63-powered 2012 550i GT xDrive with a Stage 2 tune, the addition of ARM’s 3" Downpipes and Cold Air Intake yielded +48whp and +43wtq, raising output to 460awhp and 525awtq. The catted version maintains nearly identical gains compared to the catless setup, while offering the benefits of a catted exhaust system.
CONSTRUCTION
Like all BMW performance components, precision fitment is critical. The ARM N63 Catted Downpipes are engineered to follow the smoothest possible exhaust flow path while easing installation. Consequently, the ARM N63/N63TU downpipes mount up to the turbos and midpipes with the same precision as you would expect from the factory 550i downpipes.The ARM N63 Catted 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. This is the same point BMW designed their factory N63 downpipes to be secured, which means a strong and lasting connection safe for all the components on the vehicle.
The ARM N63 Catted 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 upper 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 N63 running smoothly.
IN THE BOX
• 2x ARM N63 3" Catted Downpipes
• 2x ARM Crush Brackets
• 1x 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 |
| 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 |
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 which 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 which may never be used on a public road.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.