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Catback Valve Sonic Milltek Audi S4 B8.5, S5 8T - Valve Sonic Version - Resonated + Rear Muffler - Quad GT100 Titanium Tips
Milltek Sport stainless steel exhaust system for Audi S4 B8.5 / S5 8T, resonated (with resonator), with valves. More character, a full sound, and a stainless steel system built to last. 4 GT100 100 mm tips, titanium finish.
€4,527.00
(VAT incl.)
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Milltek Sport exhaust system for Audi S4 B8.5 / S5 8T
Replacing the original system with a Milltek Sport exhaust means getting back the character that the factory setup mutes on your Audi S4 B8.5 / S5 8T: a rounder tone at idle that opens up clearly through the revs, with no gimmicks.
Technical specifications
- Milltek part number: SSXAU408
- Part type: Exhaust system
- Configuration: resonated (with resonator), with valves
- Details: Valve Sonic version - With resonator + valved rear muffler - Quad GT100 titanium tips
- Pipe diameter: 60.3 mm
- Outlets: 4 GT100 100 mm tips
- Tip finish: titanium finish
- Installation information: ValveSonic Electronic Valved System
- Material: aerospace-grade stainless steel
- Manufacturer: Milltek Sport (UK)
Compatible vehicles
- Audi S4 B8.5 3.0 TFSi 333 hp (2012-2015)
- Audi S5 8T 3.0 TFSI B8.5 (Coupe - Convertible, 2011-2016)
- Audi S5 8T 3.0 TFSI B8.5 (Sportback, 2012-2016)
Not sure about compatibility with your vehicle? Contact us with your VIN before ordering.
Most frequently asked questions
- Drone on the highway? It is the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, but the system stays calm at steady cruising speed, ideal for daily driving.
- And the neighbors in the morning? The valves are controlled as on the original: closed and discreet at startup or in comfort mode, fully open in sport mode.
- Fitting: the system uses the original mounting points. A shop with the right equipment typically fits it in one to two hours.
Why choose Milltek Sport?
A reference among European tuners, Milltek Sport develops each of its systems directly on the vehicle. Mandrel bends, careful welds and aerospace-grade stainless steel make for a line that lasts and sounds right.
Going further
| Materials | Stainless steel |
|---|---|
| Diameter | 60mm (2.36 in) |
| Product family | Exhausts |
| Exhaust | Cat-back exhaust |
| Exhaust options | With resonator with valves |
| Homologation: | No homologation |
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