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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: SSXAU648

$3987.89 $3987.89 $3230.19 $3230.19
Milltek 2.50" Resonated Cat-Back Exhaust for Audi B9 S4 & S5. T304L stainless, hand-finished, direct fitment with OEM hangers. Engineered tone eliminates drone while preserving sportier character.

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Description

Milltek 2.50" Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-Sport Diff). Direct factory fitment using OEM hangers, no modification required. Hand-finished T304L stainless steel construction with quad polished oval trims.

The resonated design eliminates OE resonance points that cause cabin drone while preserving a sportier, more pronounced exhaust character at full throttle. 2.50" (63.50mm) mandrel-bent piping maximizes flow efficiency. Dyno-tested across the B9 platform for measurable torque gains without sacrificing street composure.

Fitment

  • Audi S4 3.0 TFSI V6 B9 Saloon/Sedan & Avant - 2016 and later (non-Sport Diff)
  • Audi S5 3.0 TFSI V6 B9 Sportback - 2017 and later (non-Sport Diff)

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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