Resonated Cat-Back Exhaust System 2.75-Inch

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Milltek Sport

Resonated Cat-Back Exhaust System 2.75-Inch

Name: Resonated Cat-Back Exhaust System 2.75-Inch
Brand: Milltek Sport
SKU: SSXAU100

$1,732.50 $1,634.69 Save $97.81

SKU: SSXAU100

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Overview

The Milltek Sport SSXAU100 is a resonated cat-back exhaust system designed for the Audi B6 A4 3.0 and S4 4.2. Constructed from T304 stainless steel, it features a 2.75-inch pipe diameter and 100mm Jet-style tailpipes. The system consists of a front link pipe, center sections, and dual rear silencers.

Show original supplier description

This Milltek Sport cat-back exhaust system (SSXAU100) is engineered to enhance the performance and sound of your Audi B6 A4 3.0 or S4 4.2. Crafted from T304 anti-magnetic stainless steel, known for its resistance to discoloration, the system boasts a 2.75-inch (69.85mm) pipe diameter for improved exhaust gas flow and increased bore to maximize performance without sacrificing mid-range torque. Mandrel bending ensures smooth bends throughout the system. The kit includes a resonated mid-pipe, dual exit rear mufflers, two polished 100mm Jet-style tailpipes, and installation hardware. As a direct replacement for the factory exhaust, no modifications are necessary for installation. Milltek engineers focus on achieving a balance between performance gains and responsible sound levels. Important considerations: This product is intended for off-road use only, and claims of street legal use are not made. Shipping to California for emissions-related equipment is not available, and an off-road/track use waiver may be required prior to shipment. Milltek Sport is not affiliated with Volkswagen Audi Group or its subsidiaries. All Milltek cat-back exhaust systems are covered by a limited lifetime warranty against corrosion and manufacturing defects to the original purchaser.

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

Brand	Milltek Sport
Part Number	SSXAU100
Category	Exhaust

Videos

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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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