Exhaust› Exhaust Pipes, Systems and Components

Milltek Sport

Resonated Cat-Back Exhaust System with Cerakote Black Oval Trims

$290.95

SKU: SSXAU750

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

Moderate — 2–4 hours

Overview

The Milltek Sport SSXAU750 is a resonated cat-back exhaust system designed for the Audi RS4 B9 2.9 V6 Turbo Avant. It features a 70mm (2.76-inch) pipe diameter and Cerakote black oval trims. This system is crafted from aerospace-grade type 304, non-magnetic stainless steel for durability and resistance to discolouration.

Milltek's mandrel bending ensures optimal gasflow with enlarged bore diameters to enhance performance without sacrificing mid-range torque. The exhaust system undergoes a rigorous acoustic development process to provide a sporty and crisp tone while eliminating NVH, drone, and cabin resonance.
Show original supplier description
The Milltek Sport SSXAU750 is a resonated cat-back exhaust system meticulously designed as a direct replacement for the original system on the Audi RS4 B9 2.9 V6 Turbo Avant (Non OPF/GPF models) from 2018. It features a 70mm (2.76-inch) pipe diameter and is finished with distinctive Cerakote black oval trims, offering both enhanced aesthetics and performance. Constructed from aerospace-grade type 304, non-magnetic stainless steel, this system is built for longevity and superior resistance to discolouration, even under harsh conditions. Milltek's commitment to performance is evident in their use of mandrel bending, which guarantees constant radius bends for optimized gas flow. The bore diameters are carefully enlarged over stock specifications to maximize performance potential without compromising mid-range torque. Each Milltek exhaust system is the result of extensive acoustic development, aimed at delivering a sporty and crisp tone that avoids undesirable NVH, drone, or cabin resonance. This specific system is designated as EC Approved, indicating compliance with European noise and emissions standards. The product comes with a complete fitting kit, and installation can often be managed by a competent DIY mechanic, though professional installation is also an option.

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 NumberSSXAU750
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.

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