ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020
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ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020

$647.00
S55DPC
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ARM Motorsports S55 Catted Downpipes - BMW M2 Comp 2019-2020 / M3 & M4 (F8x) 2015-2020

HIGHLIGHTS

• Up to +30whp / 30wtq
• Enhanced Exhaust Note
• 304 Stainless Steel
• Improved Turbo Spool
 

PROFILE

The ARM F8X S55 Catted Downpipes are the ultimate solution for improving power, throttle response, and exhaust note on your S55 powered F8X.  Our goal for the ARM F8X Catted Downpipes was to provide a solution that would maximize power and torque, fit perfectly, and sound extraordinary.  The ARM S55 Catted downpipes incorporate two 200 cell catalysts to reduce emissions and exhaust odor while providing superior exhaust flow for your F8X!





 
Downpipes are considered a standard upgrade for any F8X owner looking to safely push their S55 engine beyond basic Stage 1 tuning.  With Stage 2 and up tuning, higher boost increases back-pressure at the OEM catalysts and chokes the S55's turbochargers, causing them to work harder and shortening their life. 
 
The ARM F8X Catted Downpipes relieve the stressful back-pressure caused by high-boost tunes, allowing the exhaust to flow freely, increasing power and torque, all while extending the longevity of your S55's turbochargers.  On our test car, after installing our F80 downpipes and switching to a Stage 2 flash we made 543whp and 547wtq, this is 73whp and 126wtq gain over the stock results!
 
F80 M3 Downpipes Dyno Stage 2
 
Even with the ARM F8X Catted Downpipes installed on your stock-tune S55, you will notice an increase in power, torque and responsiveness.  Not to mention the incredible, head-turning sounds your M3 will make under part and full throttle. 
 

RUMBLE, NOT RASP.

The ARM S55 Catted Downpipes give your F8X an unparalleled sound that even other F8X owners will notice.  The deep, aggressive tone of the ARM F8X Catted Downpipes will stand out next to the all too familiar high-pitched rasp of other downpipes. 



 

CONSTRUCTION

Precision CNC machined v-band flanges offer a smooth transition of exhaust gasses from the the turbochargers to the ARM S55 Catted Downpipes.  The body of the 3" ARM F8X Catted Downpipes are constructed of SS304 Stainless-Steel and are threaded smoothly and perfectly though the space given by BMW towards the mid-pipe section.

 
Any downpipes that bolt up directly to the OEM mid-pipes must reduce to the 2.5"  to meet the size of the OEM mid-pipes.  Some aftermarket  downpipes use an abrupt, short reducer which causes turbulence in the exhaust gasses.  The ARM F8X Catted Downpipes feature a smooth, gradual transition from the 3" inlet to the 2.5" exit for optimum exhaust flow.  
 
The ARM F8X Catted Downpipes are a massive improvement over the OEM S55 downpipes, with precise fitment and brilliant finish the ARM S55 Catted Downpipes are the perfect solution for your S55 project. Our goal for the ARM F8X Catted Downpipes was to provide a solution that would maximize power/torque, fit perfectly, and sound uniquely extraordinary.  We are so confident that you'll agree we've achieved this, we back every set of our ARM F8X Catted Downpipes with a 30 Day Money-Back Guarantee and the ARM Lifetime Free-Replacement Warranty.
 

IN THE BOX

• ARM F8X Catted Downpipes
• CNC Machined Bracket for Front-Turbo Downpipe
• 4x Downpipe to Mid-Pipe Bolts/Nuts
• ARM Lifetime Replacement Warranty
 

FITMENT GUIDE



Make Model Submodel Engine
BMW F80 M3 S55 3.0L
BMW F82 M4 S55 3.0L
BMW F83 M4 S55 3.0L
BMW F87 M2 Competition S55 3.0L

 

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.
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Due to the recent suspension of the De Minimis Tariff Policy, there may be tariffs applicable to your order if the item ships from outside of the United States. Any tariffs / import duties are strictly the responsibility of the consumer. Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

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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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