Exhaust› Exhaust Pipes, Systems and Components

Milltek

Cat-Back Exhaust System

$2,714.11

SKU: SSXAU471

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Milltek SSXAU471 is a cat-back exhaust system designed as a direct replacement for the original system. It is available in multiple configurations to allow owners to choose their desired exhaust volume and tone. The system is constructed from 304L “Aircraft” Grade stainless steel for durability.
Show original supplier description
The Milltek Sport SSXAU471 is a cat-back exhaust system engineered to enhance the sound and aesthetics of your vehicle. Designed as a direct replacement for the original exhaust, this system allows owners to select their preferred increase in volume and achieve a more aggressive tone. This non-resonated system is specifically designed for the Audi S3 8V.2 models. It features a 76.20mm pipe diameter and is available with various tip finishes, including Polished, Cerakote Black, and Brushed Titanium. The system is made in the UK. **Important Fitment Note:** The original equipment (OE) valve motor from your stock exhaust is required for the installation of this system.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMilltek
Part NumberSSXAU471
CategoryExhaust

Videos

MILLTEK CATBACK EXHAUST INSTALL | AUDI S3 | Edge Autosport

MILLTEK CATBACK EXHAUST INSTALL | AUDI S3 | Edge Autosport
Audi S3 - Milltek Non-res Cat-back Exhaust Install

Audi S3 - Milltek Non-res Cat-back Exhaust Install
8V.2 S3 (GPF) Milltek Resonated GPF Back Exhaust Install with Exhaust Sounds

8V.2 S3 (GPF) Milltek Resonated GPF Back Exhaust Install with Exhaust Sounds
8V S3 Mods: Milltek Cat-Back Exhaust & APR 4 Piece Intake [with before and after sounds]

8V S3 Mods: Milltek Cat-Back Exhaust & APR 4 Piece Intake [with before and after sounds]
AUDI S3 8V WITH MILLTEK VALVED NON-RES CAT BACK & STOCK DOWNPIPES | COLD START UP | S3Ranj

AUDI S3 8V WITH MILLTEK VALVED NON-RES CAT BACK & STOCK DOWNPIPES | COLD START UP | S3Ranj
2017 Audi S3 8V Milltek Cat-back Non-resonated Exhaust

2017 Audi S3 8V Milltek Cat-back Non-resonated Exhaust
Milltek Audi S3 8V 2015+ | Non-Resonated Valved Cat-Back Exhaust | TAG Motorsports

Milltek Audi S3 8V 2015+ | Non-Resonated Valved Cat-Back Exhaust | TAG Motorsports
Audi S3 8V Milltek Cat Back Exhaust

Audi S3 8V Milltek Cat Back Exhaust
2014 S3 MIlltek Exhaust - Idle + Rev Comparison

2014 S3 MIlltek Exhaust - Idle + Rev Comparison
Audi S3 Exhaust Sound 🔥 Stock,Milltek,Akrapovic,Remus,AWE,Review,Straight Pipe,Mods,Upgrade,Borla+

Audi S3 Exhaust Sound 🔥 Stock,Milltek,Akrapovic,Remus,AWE,Review,Straight Pipe,Mods,Upgrade,Borla+
Audi S3 8V 2.0TFSI Milltek exhaust soundcheck @ DTMobility Tilburg

Audi S3 8V 2.0TFSI Milltek exhaust soundcheck @ DTMobility Tilburg
CRAZY STOCK POPS & BANGS! | AUDI S3 8V FACELIFT MILLTEK NON-RES CATBACK EXHAUST! | SOUND CHECK

CRAZY STOCK POPS & BANGS! | AUDI S3 8V FACELIFT MILLTEK NON-RES CATBACK EXHAUST! | SOUND CHECK

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy