DPF Back Milltek Audi S3 8Y 2020-2025 - 80 mm Version - non-resonated - Quad GT115 Blued Titanium Tips - Sportback

Milltek Sport DPF-back exhaust for Audi S3 8Y

Replacing the factory exhaust with a Milltek Sport DPF-back system brings back the character that the engine of your Audi S3 8Y holds back from the factory: a rounder sound at idle that opens up freely through the rev range, without gimmicks.

Technical specifications

• Milltek part number: SSXAU921
• Product type: DPF-back exhaust system
• Configuration: non-resonated (no resonator), with valves
• Details: 80 mm version - No resonator - quad GT115 blued titanium tips
• Tube diameter: 80 mm
• Outlets: 4 GT115 outlets, 115 mm
• Tip finish: blued titanium (heat effect)
• Fitting information: With valves - 80 mm tube diameter
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

Compatible vehicles

• Audi S3 8Y 2.0TFSI 310 hp (Quattro, Sportback, 2020-2025, with DPF)

Not sure about compatibility with your vehicle? Contact us with your VIN (chassis number) before ordering.

Most frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no resonator): it is the most expressive, with more crackle on lift-off. On the downside, a slight drone may appear at certain engine speeds on long trips. If you do a lot of motorway driving, compare it with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the factory system: closed and discreet on startup or in comfort mode, fully open in sport mode.
• Fitting: the system uses the original mounting points. A workshop with the right equipment typically fits it in one to two hours.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, with mandrel-bent tubes to preserve the internal diameter and a fit developed on the vehicle. The result: a clean installation without modifications, and a sound tuned to remain pleasant for daily driving.

Going further

• Resonated or non-resonated cat-back exhaust: which one should you choose for your car?
• Exhaust valve systems: how do they work, and should you keep them?