ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES
ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES

ARM MOTORSPORTS N20 CATLESS DOWNPIPE - F3X 3-SERIES | F3X 4-SERIES | F2X 2-SERIES

€211,95
/
Shipping calculated at checkout.

-2 in stock

NOT FOR SALE IN CA.

HIGHLIGHTS

• Gain up to 17whp/25wtq
• Faster Turbo Spool
• Improved Exhaust Note
• Upgrade to Stage 2+ Tuning
• SS304 Stainless Steel
  

PROFILE

The ARM Motorsports N20 Downpipe is the best hardware upgrade to get the most power from your 320i or 328i.  Similar to it's brother the N55, the N20 has a stock downpipe with a catalyst that drastically restricts exhaust flow.  This limits not only the amount of power N20 can make on the stock tune, but also prevents upgrading to a stage 2 tune due to excessive back-pressure.  An N20 downpipe upgrade is the first hardware upgrade every N20 owner should invest in.  Upgrading your downpipe unlocks the most power, increases turbo spool, allows you to run stage 2+ tuning, and improves the exhaust note of your N20 powered BMW. 

CONSTRUCTION

The ARM N20 Catless Downpipe is built with mandrel bent SS304 stainless steel and backed by the ARM Motorsports Lifetime Warranty.  The ARM N20 Downpipe starts with a 4" diameter at the precision CNC machined turbo v-band connection and gradually reduces to a 2.5" diameter to optimize exhaust flow while matching up to the stock mid-pipe perfectly.  The ARM N20 Downpipe also features two mounting points to reduce tension on the turbo from shifting and twisting during aggressive driving.  

The ARM N20 Downpipe features two O2 sensor bungs to allow for installation of the OEM oxygen sensors.  An tune or CEL fix will be required to avoid a check engine light from displaying on instrument panel.

 By reducing the back-pressure on your turbocharger, the ARM N20 Downpipe prepares your 320i / 328i for a higher boost tune. Testing on our 328i with only a Stage 1 tune yielded a very respectable 17whp and 25wtq.  Then switching to a Stage 2 tune gave it an additional 13whp and 12wtq, a total gain of 30whp and 38wtq over Stage 1 alone.

In addition to helping your N20 make more power and torque, it also opens up the otherwise tame exhaust note.  Even with a stock catback section there's a substantial increase in rumble on cold starts, and a very noticeable change under full throttle.  Coupled with a full exhaust the N20 can sound quite impressive.  The ARM N20 Downpipe connects to any aftermarket exhaust that is compatible with the stock N20 downpipe.

All ARM Motorsports Products are backed by a 30 Day Guarantee and ARM Limited Lifetime Warranty.  

IN THE BOX

• ARM N20 Downpipe
• Mounting Hardware
 

FITMENT GUIDE

Make Chassis
 Model Engine
BMW F22 228i N20 2.0L
BMW F22 228i xDrive N20 2.0L
BMW F23 228i N20 2.0L
BMW F23 228i xDrive N20 2.0L
BMW F30 320i N20 2.0L
BMW F30 320i xDrive N20 2.0L
BMW F30 328i N20 2.0L
BMW F30 328i xDrive N20 2.0L
BMW F31 328i xDrive N20 2.0L
BMW F32 428i N20 2.0L
BMW F32 428i xDrive N20 2.0L
BMW F33 428i N20 2.0L
BMW F33 428i xDrive N20 2.0L
BMW F34 328i xDrive N20 2.0L
BMW F36 428i N20 2.0L
BMW F36 428i xDrive N20 2.0L
 

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.

Please contact us via the contact page form to start a return or exchange. The return/exchange process must be started within 1 week of delivery, after 1 week we will not be able to issue a refund/exchange. A 20% restocking fee will be applied to any return once the order has been shipped. For any questions regarding returns or exchanges feel free to contact us at sales@horizonmotorsport.com or reach out to us via the contact form and we would be happy to help.

You can find additional details on our return and exchange policy here.

 

 

OUR GOAL

Horizon Motorsport has one goal: to make our clients happy. We aim to provide the highest level of customer service and the highest caliber parts, all at the most competitive prices. Have a question or concern about a product we sell? Send us an email at sales@horizonmotorsport.com.

SHIPPING

Orders typically ship in 1-2 business days from our location in Los Angeles, CA. Transit time usually ranges from 3-5 business days, depending on where you are located. We offer worldwide shipping, if you need live outside of North America, shoot us an email and we would be happy to give you a quote!

Contact Us
Creating life-long customers.

As a small business we pride ourselves on creating long lasting relationships with our customers who know that they can count on us for any of their BMW needs. At Horizon Motorsport our mission is to provide a unparalleled customer experience to keep our customers coming back.

A Company Owned By Fellow Enthusiasts.

Horizon Motorsport was founded in 2019 in Los Angeles, CA by fellow BMW enthusiasts. We have experience with nearly all makes and models and have been actively involved in the Southern California BMW scene for over 3 years. Our unique insight and experience with the BMW community and other high end European-oriented brands gives us the knowledge and ability to stock only the highest quality parts from the highest quality brands.