Milltek Cat-Back Audi A4 B8 2.0 TDI 2009-2011, A5 8T 2.0 TDI 2007-2012, Non-Resonated, Quad GT80 Black Cerakote Tips

Milltek Sport Exhaust for Audi A4 B8 / A5 8T

Left wanting more from your Audi's stock sound? This Milltek Sport stainless steel exhaust is the option owners request most often: more presence, a distinct sound signature and build quality that lasts.

Technical specifications

• Milltek part number: SSXAU664
• Part type: Exhaust system
• Configuration: non-resonated (no resonator)
• Detail: no resonator, quad GT80 black Cerakote
• Pipe diameter: 70 mm (2.75 in)
• Outlets: 4 GT80 outlets, 80 mm
• Tip finish: black Cerakote (high-temperature ceramic)
• Fitment notes: Fits with S4 3.0T lower spoiler / detailing strip | Fits with PC S-Line + lower spoiler / detailing strip S5 (2009-2012 part # 8T0 807 521B 1RR and 8T0 807 791 2ZZ) (2012+ part # 8T8 807 521 01C and 8T0 807 791 B 1RR)
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi A4 B8 2.0 TDI 140-177 hp (S-Line only, 2WD, Sedan / Avant wagon, 2009-2011)
• Audi A4 B8 2.0 TDI 177 hp (Quattro, Sedan / Avant wagon, 2009-2011)
• Audi A5 8T 2.0 TDI (2WD, Coupe, 2007-2012)

Not sure about fitment for your vehicle? Contact us with your VIN 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. The trade-off is a slight drone that can appear at certain engine speeds on long highway trips. If you do a lot of highway driving, compare it with the resonated version.
• Installation: 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?

Milltek Sport designs and manufactures its exhausts in England, using mandrel-bent tubing to preserve the internal diameter and a fit developed on the vehicle. The result: a clean installation with no modifications, and a tone tuned to stay pleasant for everyday driving.

Learn more

• Resonated or non-resonated cat-back exhaust: which one is right for your car?