Milltek Sport catback exhausts for the 2013+ Audi S4 (B8.5) are stainless steel, mandrel bent, sport precision tuned systems that are hand crafted at the Milltek factory in the UK. Piping Diameter is 2.37" (60.30mm). For the 3.0T, back-pressure will be reduced by at least 30% from the stock Exhaust. Systems are available in both Resonated or Non-Resonated.
Resonated Version This system comes with downpipes that start after your factory cats. It is entirely 60mm. This section includes a flex joint like stock. It may look like the factory catalytic converters are removed, but they are not. The stock exhaust has small mufflers by the downpipes that look like cats. This system reduces the stock drone (yes the stock system drones) and actually has pleasant sound while reducing back pressure. Comes with front muffler, center muffler and a left and right rear section each with mufflers. Tips are 80mm round quads, similar stock. The lower priced system (Non-Resonated, below) offers a bit more sound for a great price.
Non-Resonated Version There is some growl, not too intrusive, that gives the S4 the aggressive sound it deserves. This version comes with large oval tips or quad polished tips. The difference between this system and the resonated system is the elimination of the left and right rear mufflers. This lower priced system offers the ultimate race sound.
Part # SSXAU376 - S4 (B8.5) Catback Non-Resonated Polished Quad Tips - LH Front Pipe - RH Front Pipe - Front Silencer Assembly - Center Silencer Assembly - LH Rear Silencer Bypass Pipe - RH Rear Silencer Bypass Pipe - LH Polished Tip Assembly - RH Polished Tip Assembly - Brace Bar Pipe size: 2.37" (60.30mm) Tip style: 100mm Polished GT100 tips
The vast majority of orders ship out the same business day and are delivered within just 1-3 business days, this includes our Free Shipping service. On the very rare occasions when an order will not ship right away customers will be emailed promptly with an estimated ship date and the option to cancel or remain on order. Brands that ship from international locations such as Milltek typically take between 4-7 business days to be delivered.
We offer speedy free shipping to the continental US for orders of $200 or more. For those customers placing orders of less than $200 we offer a standard flat rate fee of $9.99. Customers either pay $9.99 or nothing for shipping - no surprises at checkout! The majority of orders are delivered within 1-3 business days using the free shipping option, however some orders can take up to 5 business days depending on your location.
This statement is only meant for customers paying via credit or debit card. If you're using PayPal, Affirm, ApplePay, etc. - no additional verification is necessary. It's best to use the billing address that's on file with the credit card company as the shipping address. Some orders that request shipping to an address other than the authorized credit card billing address will require additional verification and may be subject to processing delays.
Our return policy allows customers to return most orders within 30 days (14 days for AutoTecknic parts). Customers are responsible for any shipping fees associated with a return and the restocking fee. All parts must be in 100% brand new condition. Return requests must be made via email. Feel free to view our return policy for full details.
Images are for reference only, the actual product may vary. While the vast majority of images on our website are accurate, on occasion an image will be for reference only. Our automated catalog is fed images from our suppliers and manufacturers. If our sources do not have an image on file of the exact part they will often include a generic image that should be used for reference only. If you have a question about an image and its accuracy, please email us prior to placing an order.