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Milltek Sport Cat-Back Exhaust — 2001-2005 Audi S4 B6 / Audi A4 B6

  • Sale
  • Regular price $1,389.00


Milltek Sport Cat-Back Exhaust system. Premium aircraft-grade 304 stainless steel, precision TIG-welded, bolt-on fit. Made in UK.

Product Highlights:

  • 304L aircraft-grade stainless steel
  • Precision TIG-welded construction
  • Direct bolt-on replacement
  • Performance gains + improved exhaust tone

Options Available:

  • Sound Level: Non-Resonated (Louder), Resonated (Quieter)
  • Tip Style: GT-100, Jet

Milltek Part Numbers:

  • SSXAU038 — Non-resonated (louder)
  • SSXAU295 — Non-resonated (louder)
  • SSXAU873 — Non-resonated (louder) with GT-100 Cerakote Black Trims
  • SSXAU872 — Non-resonated (louder) with Jet-100 Cerakote Black Trims
  • SSXAU296 — Resonated (quieter)
  • SSXAU100 — Resonated (quieter)
  • SSXAU875 — Resonated (quieter) with GT-100 Cerakote Black Trims
  • SSXAU874 — Resonated (quieter) with Jet-100 Cerakote Black Trims

Vehicle Compatibility

This exhaust is confirmed to fit the following vehicles:

  • Audi S4 4.2 V8 quattro B6 Saloon/Sedan, Avant, & Cabriolet (2003 to 2005)