- Description
- Reviews
- Shipping and Refund
The ARM B9 S4 catless Downpipe is one of the best upgrades for the Audi 3.0T EA839 engine, found in the B9 S4 and S5! The ARM B9 3.0T Downpipe allows for more exhaust flow from the turbocharger which allows your 3.0T to spool faster, increasing throttle response, and boosting power and torque. On top of all of these performance benefits, the ARM B9 3.0T Downpipe upgrade opens up the sound of your 3.0T especially when paired with the ARM B9 Midpipes, giving you an incredible sound to match!
The ARM B9 S4 Catted Downpipe gives your Audi 3.0T EA839engine all the power with less emissions! It allows for more exhaust flow from the turbocharger while keeping exhaust fumes lower. This allows your 3.0T to spool faster, increasing power, and improving throttle response, especially in the lower RPM range. On top of all of these performance benefits, the ARM B9 3.0T Downpipe upgrade opens up the sound of your 3.0T especially when paired with the ARM B9 Midpipes, giving you the sound to match!
HIGHLIGHTS
• Massive 6.5" Design
• Faster Turbo Spool
• Improved Exhaust Note
• Fits OEM and ARM Midpipes
• Supports Hybrid Turbo Setups
The OEM 3.0T downpipe utilizes a large 800 cell catalyst that restricts vital airflow out of the engine. The ARM B9 S4 Downpipe replaces this restrictive section of the exhaust, allowing you to free up more power from your EA839!
A tune is not required to run the ARM B9 3.0T Downpipe, but pairing it with a tune will greatly increase the power and two of your 3.0T.
CONSTRUCTION
The ARM B9 3.0T Downpipe upgrade starts at the turbocharger where we have a precision CNC machined turbo flange to match the OEM turbo, or any turbo upgrade that fits the OEM downpipe. From there the ARM B9 S4 Downpipe has a massive 6.5" section to maximize exhaust flow straight off the turbo, which then transitions to a Y-section. 
The Y-section on the ARM B9 S4 Downpipe starts at a healthy 3.5", and then steps down to gradually to match the OEM midpipe flanges. The midpipe flanges on the ARM B9 S4 Downpipe are precision cut and designed to match up to either the OEM B9 midpipes, or the ARM B9 Midpipes. Pairing the ARM B9 3.0T Downpipe with the ARM B9 Midpipes creates an exotic and intoxicating exhaust note that will leave you grinning ear to ear.
The ARM B9 3.0T Downpipe comes with 2x midpipe gaskets and hardware for these flanges.
IN THE BOX
• Midpipe Gaskets and Hardware
FITMENT GUIDE
| Make | Chassis | Model | Engine |
| AUDI |
B9 |
S4 |
3.0T |
| AUDI | B9.5 | S4 | 3.0T |
| AUDI |
B9 | S5 Coupe | 3.0T |
| AUDI | B9 | S5 Sportback | 3.0T |
| AUDI | B9.5 | S5 Coupe | 3.0T |
| AUDI | B9.5 | S5 Sportback | 3.0T |
ARM MOTORSPORTS LIFETIME WARRANTY
Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than palenon performance brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee (up to 20%) may apply for damaged packaging or delivery issues. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom or pre-order items canceled within their lead time are also subject to this fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
We take all chargebacks and payment disputes very seriously. Filing a false or baseless chargeback is considered fraud and may result in civil or criminal action. Such cases can lead to legal penalties, including fines of $1,000–$10,000 and possible imprisonment.
Our legal team will compile all relevant documentation to dispute any fraudulent chargeback and may forward the case to a collections agency or pursue legal proceedings in our jurisdiction.
The ARM B9 S4 catless Downpipe is one of the best upgrades for the Audi 3.0T EA839 engine, found in the B9 S4 and S5! The ARM B9 3.0T Downpipe allows for more exhaust flow from the turbocharger which allows your 3.0T to spool faster, increasing throttle response, and boosting power and torque. On top of all of these performance benefits, the ARM B9 3.0T Downpipe upgrade opens up the sound of your 3.0T especially when paired with the ARM B9 Midpipes, giving you an incredible sound to match!
The ARM B9 S4 Catted Downpipe gives your Audi 3.0T EA839engine all the power with less emissions! It allows for more exhaust flow from the turbocharger while keeping exhaust fumes lower. This allows your 3.0T to spool faster, increasing power, and improving throttle response, especially in the lower RPM range. On top of all of these performance benefits, the ARM B9 3.0T Downpipe upgrade opens up the sound of your 3.0T especially when paired with the ARM B9 Midpipes, giving you the sound to match!
HIGHLIGHTS
• Massive 6.5" Design
• Faster Turbo Spool
• Improved Exhaust Note
• Fits OEM and ARM Midpipes
• Supports Hybrid Turbo Setups
The OEM 3.0T downpipe utilizes a large 800 cell catalyst that restricts vital airflow out of the engine. The ARM B9 S4 Downpipe replaces this restrictive section of the exhaust, allowing you to free up more power from your EA839!
A tune is not required to run the ARM B9 3.0T Downpipe, but pairing it with a tune will greatly increase the power and two of your 3.0T.
CONSTRUCTION
The ARM B9 3.0T Downpipe upgrade starts at the turbocharger where we have a precision CNC machined turbo flange to match the OEM turbo, or any turbo upgrade that fits the OEM downpipe. From there the ARM B9 S4 Downpipe has a massive 6.5" section to maximize exhaust flow straight off the turbo, which then transitions to a Y-section.
The Y-section on the ARM B9 S4 Downpipe starts at a healthy 3.5", and then steps down to gradually to match the OEM midpipe flanges. The midpipe flanges on the ARM B9 S4 Downpipe are precision cut and designed to match up to either the OEM B9 midpipes, or the ARM B9 Midpipes. Pairing the ARM B9 3.0T Downpipe with the ARM B9 Midpipes creates an exotic and intoxicating exhaust note that will leave you grinning ear to ear.
The ARM B9 3.0T Downpipe comes with 2x midpipe gaskets and hardware for these flanges.
IN THE BOX
• Midpipe Gaskets and Hardware
FITMENT GUIDE
| Make | Chassis | Model | Engine |
| AUDI |
B9 |
S4 |
3.0T |
| AUDI | B9.5 | S4 | 3.0T |
| AUDI |
B9 | S5 Coupe | 3.0T |
| AUDI | B9 | S5 Sportback | 3.0T |
| AUDI | B9.5 | S5 Coupe | 3.0T |
| AUDI | B9.5 | S5 Sportback | 3.0T |
ARM MOTORSPORTS LIFETIME WARRANTY
Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than palenon performance brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee (up to 20%) may apply for damaged packaging or delivery issues. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom or pre-order items canceled within their lead time are also subject to this fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
We take all chargebacks and payment disputes very seriously. Filing a false or baseless chargeback is considered fraud and may result in civil or criminal action. Such cases can lead to legal penalties, including fines of $1,000–$10,000 and possible imprisonment.
Our legal team will compile all relevant documentation to dispute any fraudulent chargeback and may forward the case to a collections agency or pursue legal proceedings in our jurisdiction.
