









- Description
- Reviews
- Shipping and Refund
Unlock the true performance potential of your BMW N26-powered vehicle with the ARM Motorsports N26 Catless Downpipe. The factory N26 downpipe contains a large, restrictive catalyst that significantly limits exhaust flow—choking performance and preventing you from safely upgrading to a Stage 2 tune.
The ARM N26 Downpipe is the ideal first hardware upgrade for any N26 owner. By reducing back-pressure and eliminating the restrictive OEM catalytic converter, this downpipe enables significant power gains, sharper turbo response, and a more aggressive exhaust note. Whether you're running a stock tune or upgrading to Stage 2+, this downpipe is essential for maximizing output and drivability.
PERFORMANCE GAINS
Testing on our in-house BMW 328i showed the following improvements:
-
+17whp / +25wtq with Stage 1 tune
-
+30whp / +38wtq total gain with Stage 2 tune over Stage 1
In addition to performance benefits, you'll experience a deeper and louder exhaust note—especially noticeable under full throttle. Pairing the ARM Downpipe with an upgraded midpipe or cat-back exhaust delivers an even more aggressive tone.
CONSTRUCTION & DESIGN
Crafted from mandrel-bent SS304 stainless steel, the ARM N26 Downpipe is engineered for durability and long-term performance. It begins with a 4.0" CNC-machined v-band flange at the turbo outlet and smoothly tapers to a 2.5" outlet to perfectly mate with the OEM midpipe using the factory clamp.
Features include:
-
Precision TIG welds
-
Two O2 sensor bungs for OEM sensor compatibility
-
Direct bolt-on installation with OEM and most aftermarket exhaust systems
RECOMMENDATION
With the increased power and boost potential this downpipe unlocks, intake air temperatures (IATs) may rise. We recommend upgrading your intercooler to maintain performance. The ARM F-Series FMIC is a perfect match for this setup.
IN THE BOX
-
ARM N26 Catless Downpipe
FITMENT GUIDE
Compatible with N26 2.0L Turbocharged Engines in the following BMW models:
-
BMW F22 228i
-
BMW F22 228i xDrive
-
BMW F23 228i
-
BMW F23 228i xDrive
-
BMW F30 320i
-
BMW F30 320i xDrive
-
BMW F30 328i
-
BMW F30 328i xDrive
-
BMW F31 328i xDrive
-
BMW F34 328i xDrive
-
BMW F32 428i
-
BMW F33 428i xDrive
-
BMW F36 428i
ARM MOTORSPORTS LIFETIME WARRANTY
All ARM Motorsports products are backed by our Lifetime Warranty, which is automatically activated at the time of purchase. This warranty covers defects in craftsmanship or fitment and entitles you to a full replacement.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need proof of purchase.
To start a return, you can contact us at sales@palenonperformance.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@palenonperformance.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, Burger Motorsports does not allow returns, custom products (such as special orders or personalized items), JB4 Tuners and air filters can not be returned. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on discounted items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. Certain circumstances will require a restocking fee of up to 25% at the discretion of Palenon Performance. (Examples of these circumstances include but are not limited to multiple failed delivery attempts, modified or damaged products and packaging, etc.) If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Handling
If the item is shipping from us direct, you will receive a tracking number within 1 business day. Most orders fulfilled at our warehouse will ship the same business day if ordered by 12pm MST. If the item is being drop shipped from the manufacturer, we cannot guarantee a tracking number within 1 business day. If an item is being drop shipped, we cannot guarantee the 24 hour (1 business day) processing time. A purchase of expedited shipping at checkout means that once item is ready to ship, it will ship using the upgraded shipping method. Some manufacturers require 3-5 days to process orders. Purchasing expedited shipping may speed up the processing time of your order, but we cannot make any guarantees in relation to faster processing time on the manufacturer’s end.
Cancellations
If you used a credit/debit card or PayPal to place an order and decide to cancel or return your order for any reason, a 5% merchant fee will be passed along to you (8% for Shop Pay installments). Some manufacturers can take up to 7 business days to ship out orders. If an item is out of stock we will reach out to you within 48 hours to confirm you would like to proceed with a preorder. If the item is listed as custom-built/ built to order within the description, or if the ETA or average lead time is visible on the product page at the time of ordering and you are cancelling inside of that ETA/lead time you will be charged the merchant fee. If the cancellation is outside of the time frame the merchant fee will not be charged to you for canceling.
Unlock the true performance potential of your BMW N26-powered vehicle with the ARM Motorsports N26 Catless Downpipe. The factory N26 downpipe contains a large, restrictive catalyst that significantly limits exhaust flow—choking performance and preventing you from safely upgrading to a Stage 2 tune.
The ARM N26 Downpipe is the ideal first hardware upgrade for any N26 owner. By reducing back-pressure and eliminating the restrictive OEM catalytic converter, this downpipe enables significant power gains, sharper turbo response, and a more aggressive exhaust note. Whether you're running a stock tune or upgrading to Stage 2+, this downpipe is essential for maximizing output and drivability.
PERFORMANCE GAINS
Testing on our in-house BMW 328i showed the following improvements:
-
+17whp / +25wtq with Stage 1 tune
-
+30whp / +38wtq total gain with Stage 2 tune over Stage 1
In addition to performance benefits, you'll experience a deeper and louder exhaust note—especially noticeable under full throttle. Pairing the ARM Downpipe with an upgraded midpipe or cat-back exhaust delivers an even more aggressive tone.
CONSTRUCTION & DESIGN
Crafted from mandrel-bent SS304 stainless steel, the ARM N26 Downpipe is engineered for durability and long-term performance. It begins with a 4.0" CNC-machined v-band flange at the turbo outlet and smoothly tapers to a 2.5" outlet to perfectly mate with the OEM midpipe using the factory clamp.
Features include:
-
Precision TIG welds
-
Two O2 sensor bungs for OEM sensor compatibility
-
Direct bolt-on installation with OEM and most aftermarket exhaust systems
RECOMMENDATION
With the increased power and boost potential this downpipe unlocks, intake air temperatures (IATs) may rise. We recommend upgrading your intercooler to maintain performance. The ARM F-Series FMIC is a perfect match for this setup.
IN THE BOX
-
ARM N26 Catless Downpipe
FITMENT GUIDE
Compatible with N26 2.0L Turbocharged Engines in the following BMW models:
-
BMW F22 228i
-
BMW F22 228i xDrive
-
BMW F23 228i
-
BMW F23 228i xDrive
-
BMW F30 320i
-
BMW F30 320i xDrive
-
BMW F30 328i
-
BMW F30 328i xDrive
-
BMW F31 328i xDrive
-
BMW F34 328i xDrive
-
BMW F32 428i
-
BMW F33 428i xDrive
-
BMW F36 428i
ARM MOTORSPORTS LIFETIME WARRANTY
All ARM Motorsports products are backed by our Lifetime Warranty, which is automatically activated at the time of purchase. This warranty covers defects in craftsmanship or fitment and entitles you to a full replacement.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need proof of purchase.
To start a return, you can contact us at sales@palenonperformance.com. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@palenonperformance.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, Burger Motorsports does not allow returns, custom products (such as special orders or personalized items), JB4 Tuners and air filters can not be returned. We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on discounted items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. Certain circumstances will require a restocking fee of up to 25% at the discretion of Palenon Performance. (Examples of these circumstances include but are not limited to multiple failed delivery attempts, modified or damaged products and packaging, etc.) If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Handling
If the item is shipping from us direct, you will receive a tracking number within 1 business day. Most orders fulfilled at our warehouse will ship the same business day if ordered by 12pm MST. If the item is being drop shipped from the manufacturer, we cannot guarantee a tracking number within 1 business day. If an item is being drop shipped, we cannot guarantee the 24 hour (1 business day) processing time. A purchase of expedited shipping at checkout means that once item is ready to ship, it will ship using the upgraded shipping method. Some manufacturers require 3-5 days to process orders. Purchasing expedited shipping may speed up the processing time of your order, but we cannot make any guarantees in relation to faster processing time on the manufacturer’s end.
Cancellations
If you used a credit/debit card or PayPal to place an order and decide to cancel or return your order for any reason, a 5% merchant fee will be passed along to you (8% for Shop Pay installments). Some manufacturers can take up to 7 business days to ship out orders. If an item is out of stock we will reach out to you within 48 hours to confirm you would like to proceed with a preorder. If the item is listed as custom-built/ built to order within the description, or if the ETA or average lead time is visible on the product page at the time of ordering and you are cancelling inside of that ETA/lead time you will be charged the merchant fee. If the cancellation is outside of the time frame the merchant fee will not be charged to you for canceling.

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