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

SKU: SSXAU644

$3756.77 $3756.77
Milltek Resonated Cat-Back Exhaust for Audi B9 S4/S5. T304L stainless, mandrel-bent, quad GT-90 tips, OEM+ fitment, engineered tone. Direct factory fitment, no modification required.

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Description

Milltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-sport differential models). Direct factory fitment replacement using OEM hangers, no modification required. 2.50" (63.5mm) mandrel-bent T304L stainless steel construction with quad GT-90 polished tips.

Engineered tone character balances sportier note with refinement-resonated design targets OE resonance points for OE+ sound profile without excessive drone. T304Lstainless steel resists corrosion and thermal stress. CNC-formed joints and hand-finished construction. Dyno-proven improved exhaust flow supports modest performance gains across the power band.

Fitment

  • Audi S4 B9 3.0L Turbo V6 Saloon/Sedan & Avant (non-sport differential) 2016+
  • Audi S5 B9 3.0L Turbo V6 Sportback (non-sport differential) 2017+

Cat-back design: replaces factory exhaust from rear of secondary catalytic converter rearward. OEM valves and electronic controls remain unaffected. Fits stock suspension and body.

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 - Non Sport Diff Models) - Left Hand Drive Cars Only > 2016 and Later
    • Audi > S5 > 3.0 V6 Turbo Sportback B9 (ONLY - Non Sport Diff Models Only) - Left Hand Drive Cars Only > 2017 and Later

Shipping Information

This system ships in 2 boxes.

Box 1: 60 x 18 x 15 at 59.54lbs
Box 2: 51 x 15 x 12 at 35.28lbs

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