Cat-back Milltek Audi A4 B8 2.0 TFSI 2008-2011, A5 8T 2.0 TFSI 2008-2012 - ECE Homologated - Resonated - Quad GT80 Polished Exha

Milltek Sport Exhaust System for Audi A4 B8 / A5 8T

On the Audi A4 B8 / A5 8T, the factory exhaust is designed for quiet operation and emissions compliance. This Milltek Sport stainless steel exhaust system restores the engine's voice with a refined, full, deep tone, the sound that has built the British brand's reputation.

Technical Specifications

• Milltek Part Number: SSXAU303
• Part Type: Exhaust System
• Configuration: Resonated (with resonator)
• Details: ECE Approved - With resonator - Quad GT80 exit, polished stainless steel
• Pipe Diameter: 70 mm (2.75 inches)
• Outlets: 4 x 80 mm GT80 outlets
• Tip Finish: polished stainless steel
• Fitting Information: Fits with lower spoiler / detailing strip S4 3.0T | Fits with lower spoiler / detailing strip S5 4.2 V8 - (2009-2012 part # 8T0 807 521B 1RR and 8T0 807 791 2ZZ) - (2012+ part # 8T8 807 521 01C and 8T0 807 791 B 1RR) | Fits with diffuser S5 Sportback - S-Line only
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC approved
• Manufacturer: Milltek Sport (UK)

Compatible Vehicles

• Audi A4 B8 2.0 TFSI (S-Line only, Tiptronic only, Quattro and 2WD, Sedan - Wagon, 2008-2011)
• Audi A5 8T 2.0 TFSI (S-Line Only, S-Tronic, Quattro and 2WD, Coupe, 2008-2012)
• Audi A5 8T 2.0 TFSI (Multitronic / S-Tronic, Quattro and 2WD, Sportback, 2009-2012)

Not sure about compatibility with your vehicle? Contact us with your VIN before ordering.

Frequently Asked Questions

• Highway drone? It's the number one concern on forums. This version keeps a resonator: the tone stays full under acceleration, but the exhaust stays subdued at steady speed, ideal for daily driving.
• Homologation: this system is ECE / EC approved, a real plus for driving with peace of mind and passing the roadworthiness inspection (contrôle technique).
• Installation: the system uses the original mounting points. A workshop typically fits it in one to two hours.

Why Choose Milltek Sport?

Feedback from owners most often mentions fit quality and a deep tone that is present but never harsh. This is the hallmark of Milltek Sport, a British manufacturer specializing in stainless steel exhausts.

Learn More

• Resonated or non-resonated cat-back: which to choose for your car?
• Exhaust systems and roadworthiness inspection in France