EC

Milltek Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Polished Tips

SKU: SSXAU694

$3752.49 $3752.49 $3039.52 $3039.52
Milltek resonated cat-back exhaust for Audi B9 S4 and S5 3.0 V6 Turbo. T304L stainless, mandrel-bent, quad GT-100 polished tips, direct factory fitment, sport differential models without brace bars.

Description

Milltek 2.50" resonated cat-back exhaust system for Audi B9 S4 and S5 3.0 V6 Turbo. Direct factory fitment for sport differential models without brace bars (2016+ S4 sedan/Avant, 2017+ S5 Sportback). Quad GT-100 polished tips. T304L stainless steel construction, mandrel-bent throughout.

The resonated design delivers an engineered tone that enhances the OE+ character while maintaining composure at cruise. 2.50" (63.50mm) diameter pipe optimizes exhaust scavenging for the 3.0 turbo's airflow requirements. Hand-finished welds and CNC-formed flanges ensure OEM-quality fitment. Uses factory hangers and mounting points-no modification required.

Fitment

  • Audi S4 B9 3.0 V6 Turbo - Saloon and Avant (sport differential, no brace bars) - 2016+
  • Audi S5 B9 Sportback 3.0 V6 Turbo (sport differential, no brace bars) - 2017+

Resonated cat-back systems preserve rear valence fitment and maintain OE compatibility. T304L stainless steel resists thermal cycling and road salt for proven longevity.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Key Facts

Pipe Diameter 63.50
  1 to 1.5 hours to fit (including removing OE system)
Race Product No
EMarked Yes
EMark Number AudiS4S5B9

System Fitment List

    • Audi > S4 > 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (ONLY - Sport Diff Models Only & Without Brace Bars) - Left Hand Drive Cars Only > 2016 and Later
    • Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Sport Diff Models Only & without Brace Bars) - Left Hand Drive Cars Only > 2017 and Later

Shipping Information

This system ships in 2 boxes.

Box 1: 60 x 18 x 15 at 55.12lbs
Box 2: 51 x 15 x 12 at 33.08lbs