- Description
- Fitment
- Refund Policy
HIGHLIGHTS
• Increased Power and Torque
• Massive 6.5" Design
• Faster Turbo Spool
• Improved Exhaust Note
• Fits ARM and OEM Midpipes
• Supports Hybrid Turbo Setups

PROFILE
The ARM B9 S4 Catted Downpipe gives your Audi 3.0T EA839 engine 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!
Check out the video below to hear the sound difference the ARM Downpipe and ARM Midpipes makes versus the OEM downpipe and midpipes.
The OEM 3.0T downpipe utilizes a large 800 cell catalyst that restricts vital airflow out of the engine. The ARM B9 3.0T Downpipe replaces this restrictive section of the exhaust with a 200 cell catalyst, allowing you to free up more power from your 3.0T!

A tune is not required to run the ARM B9 3.0T Downpipe, but pairing it with a tune will greatly increase the output of your 3.0T.

Unlock the full potential of your 3.0T setup by pairing the ARM B9 Downpipe with the ARM B9 3" Midpipes. On their own, each gives you a boost in power and sound, but if you're looking to get the most out of your B9 setup, pairing them together will perform and sound incredible. These two parts replace the biggest restrictions in the stock B9 exhaust setup, helping your turbo spool faster, your exhaust flow more freely, and your car sound much more aggressive—all while retaining your factory exhaust valves. Built to fit perfectly and work in sync, the ARM B9 Downpipe and Midpipes combination delivers the ideal setup for your EA839.
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" catted section to maximize exhaust flow straight off the turbo, which then transitions to a 3.5" Y-section. The midpipe flanges on the ARM B9 3.0T Downpipe are precision cut and designed to mate 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 gaskets and hardware for the midpipe connection.
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
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
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.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
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