Exhaust› Exhaust Pipes, Systems and Components

Milltek

Cat-Back Exhaust System Quad GT-100 Polished Trims

$3,507.46

SKU: SSXAU650

In Stock
In Stock
Ships by Jul 30
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Milltek SSXAU650 is a cat-back exhaust system designed for the Audi S4 and S5 B9 models. Constructed from aerospace-grade type 304, non-magnetic stainless steel, this system is built for durability and resistance to discolouration. It features a non-resonated design for a louder, sportier tone and is finished with Quad GT-100 polished trims.

The system utilizes mandrel-bent pipes with enlarged bore diameters to optimize gas flow and performance without sacrificing mid-range torque. Milltek exhaust systems undergo extensive acoustic development to achieve a crisp, sporty sound profile while preventing unwanted NVH, drone, or cabin resonance.

Fitment

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

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Specifications

BrandMilltek
Part NumberSSXAU650
CategoryExhaust

Buy with Confidence

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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