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Milltek

3.0T 2.5-Inch High-Flow Downpipe with 200 CPSI Cat

$3,374.78

SKU: SSXAU673

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Overview

The Milltek SSXAU673 is a high-flow downpipe designed for Audi B9/B9.5 S4 and S5 models with the 3.0T engine. It features a 2.5-inch diameter pipe constructed from T304 stainless steel and includes a 200 CPSI high-flow sports catalytic converter. This downpipe optimizes exhaust flow to increase engine efficiency, horsepower, and torque.
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The Milltek SSXAU673 is a high-flow downpipe engineered to significantly elevate your Audi B9/B9.5 S4 or S5's driving experience. Crafted from premium T304 stainless steel with a 2.5-inch diameter, this component is designed for direct fitment, ensuring seamless integration with OEM or Milltek cat-back exhaust systems. At the heart of this downpipe is a high-flow sports catalytic converter featuring 200 CPSI (cells per square inch). This component optimizes exhaust flow, leading to increased engine efficiency and noticeable gains in horsepower and torque, along with a greatly improved turbo response compared to factory restrictive downpipes. Milltek is a renowned name in performance exhaust systems, built on decades of experience and a commitment to quality and innovation. This downpipe is compatible with Audi S4 B9 (2017-2019) 3.0T, S4 B9.5 (2020-2024) 3.0T, S5 B9 (2018-2019) Coupe and Sportback 3.0T, and S5 B9.5 (2020-2025) Coupe and Sportback 3.0T models. It is designed to be used with Milltek's 3-inch cat-back exhausts, though other brands may require modification for fitment. A 2-year or 50,000-mile warranty is provided for hi-flow sports catalysts and downpipes when used in conjunction with other Milltek products. Note: This product is not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

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.

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Specifications

BrandMilltek
Part NumberSSXAU673
CategoryExhaust
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