Audi B8/8.5 S4 Valved Exhaust System - Resonated With 4" Chrome Swivel Tips
- Mfg Part #
- 008553ECS01KT
- ECS Part #
- ES#3619908
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Product Details
True automotive passion comes in many forms. For us, we've found driving euphoria with our new ECS Downpipe-back Valved Exhaust System.
Enjoy your B8 S4 with the most engaging, race-inspired, performance-valved exhaust system. Intoxicating exhaust notes fuel your desire to push your engine to its limits with every ounce of power and every engine revolution. Experience your driving passion with our ECS Valved Exhaust System and control your sound with our valved muffler design.
The full exhaust system is made from high quality brushed T304 stainless steel with TIG welded joints for an exceptional look and durability. With the valves open, we showed gains of 19 WHP and 16 WTQ on our B8 S4 equipped with a Kohlefaser Luft-Technik intake and a stage 2 tune with pulley!
In normal, comfortable driving conditions, the valve remains closed and exhaust gases are directed through the channels of the mufflers, where sound reduction takes place. To open the exhaust, simply pressing the "valve open" button on the remote key fob unleashes a straight-through, raw, unedited exhaust symphony.
When paired with our standards of quality and design requirements here at ECS Tuning, we can provide your B8 S4 a perfect blend of performance and an interactive driving experience. Through multiple design iterations and stringent product testing, we have engineered our exhaust system to not only free up horsepower but to provide trouble-free installation.
Our ECS Valved Exhaust System was designed, engineered, tested and quality inspected by our Research and Development team in our Wadsworth, Ohio facility. We strive for the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long term product testing.
Though our exhaust comes with a remote to operate the valves, for seamless integration, the valve controller can be programmed to your HomeLink opener system. Following the instructions in your owner's manual, you will need to use the remote that is provided with the exhaust to program two unused buttons on your opener system. One button needs programming to the valve open button on the fob and the other will be programmed to the valve closed button on the fob. Now you can just store the remote away in case you need to reset the programming!
Features:
- Full 5 year warranty on ALL components to the original purchaser!
- 2.5" T304 Stainless Steel Mandrel Bent Tubing
- 1.25mm wall downstream - reduces overall system weight
- Integrated X-Pipe
- 1/2" Stainless Steel Exhaust Hangers
- Welded in OE locations for precise fitment
- Interactive Valved Muffler
- Pneumatically controlled exhaust valves
- Straight-through perforated core in Valve-Open position
- Brushed T304 stainless steel muffler casing featuring stamped ECS logo
- Dual Tailpipe Section
- Retains dual tip fitment
- Adjustable tailpipe to center section
- ECS logo plate in center divide
- Maximum Adjustability
- Clamps allow several degrees of component rotation
- ECS Swivel Exhaust Tips allow for precise fit and finish
- Fully TIG Welded
- Factory like fitment -- no modifications required!
- All hardware needed for installation
- Interactive Valved Mufflers with dual outlets on each
- Clamp-on 4" Swivel Exhaust Tips
**Please note, a manifold vacuum source is required to activate the interactive exhaust valve --- This is NOT included but available under ES#2710239**
If your looking to customize your ECS Valved System please see ES4488022 to change or add to your kit.
- cat back
- catback
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Audi | B8 S4 | Quattro | 3.0T | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Black ECS Tuning Window Sticker - Priced Each |
|
2 | YES | |
| Remote Key Fob Switch Set & Exhaust Valve Installation Kit (Dual Valve) |
|
1 | YES | |
| ECS UNIVERSAL Swivel Exhaust Tip - 4.0" Chrome - Priced Each |
|
4 | YES | |
| Audi B8 S4/S5 Cat-Back Exhaust Hardware Pack |
|
1 | YES | |
| Main Exhaust - 304SS |
|
1 | YES | |
| Valved Mufflers - 304SS |
|
1 | YES | |
| ECS Tuning Exhaust Resonator Section - Universal |
|
1 | YES | |
| Long Adapters - 304SS |
|
1 | YES |
Installation
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Return and Exchanges
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All you need is your order number and email address.
New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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