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Exhaust› Exhaust Pipes, Systems and Components

Milltek Sport

Sport Cat-Back Exhaust System

$3,016.33 $2,735.96 Save $280.37

SKU: SSXAU181

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Milltek Sport SSXAU181 is a non-resonated cat-back exhaust system designed as a direct replacement for the original system. It is constructed from 304L “Aircraft” Grade stainless steel, ensuring durability in harsh conditions. This system removes secondary catalysts while retaining the original exhaust tips.
Show original supplier description
The Milltek Sport SSXAU181 cat-back exhaust system is engineered for the Audi R8 V8 4.2 Quattro, providing an improved sound and aesthetic. A key feature of this system is its removal of secondary catalysts, contributing to a more direct exhaust flow. The system is intended as a direct bolt-on replacement for the factory exhaust. The estimated fitting time for this exhaust system is approximately 5.5 to 6.5 hours. This cat-back exhaust system is specifically designed for the Audi R8 Mk1 (2007-2015) with the 4.2L V8 engine.

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

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Specifications

BrandMilltek Sport
Part NumberSSXAU181
CategoryExhaust
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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.

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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.

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