Audi S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models) - Right Hand Drive Cars Only Cat-back (RHD)
Audi S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models) - Right Hand Drive Cars Only Cat-back (RHD)
Race versions are for motorsport/off-road use only.
Description
This Milltek Sport cat-back exhaust system replaces the factory exhaust from the catalytic converter rearward.
Key Features
- Constructed from aircraft-grade 304 stainless steel
- Mandrel-bent pipework for optimal flow
- Large-bore 2.50" (63.50mm) tubing
- Road-legal and race versions available — choose in the Specification option
What's Included*
- 1x HJS ECE Downpipe Euro 6 200CPSI
Vehicle Fitment
- S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models) - Left Hand Drive Cars Only
- S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models) - Right Hand Drive Cars Only
- S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) - Left Hand Drive Cars Only
- S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) - Right Hand Drive Cars Only
- S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & With Brace Bars)
- S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & Without Brace Bars)
- S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only)
- S5 3.0 V6 Turbo Sportback B9 (Non Sport Diff Models Only)
- S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & With Brace Bars)
- S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & Without Brace Bars)
*Kit contents — including any adapter pipe — vary by the configuration you select. Choose the option matching your vehicle's OE or Milltek Sport cat-back.
Delivery, returns & warranty
Delivery, returns & warranty
Free UK Mainland Delivery
Free delivery to UK mainland addresses on orders over £50. Orders under £50 are charged at £5.99.
Milltek Sport Warranty
Lifetime guarantee on cat-back, GPF-back and rear silencer systems. Downpipes, hi-flow catalysts and valved parts: 2 years / 80,000 km. Electronics: 2 years. Your statutory rights are not affected.
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Milltek Engineering
T304L Stainless Steel
Aerospace-grade, non-magnetic stainless steel that resists degradation and discolouration — built to last almost indefinitely.
Precision Engineered
CNC mandrel bent for smooth internal bore and optimum gas flow. 3D laser scanned for exact OEM fitment every time.
Motorsport Heritage
Developed through decades of competition in BTCC, VLN, Nürburgring 24hr and Time Attack — race-proven engineering in every system.

Performance Exhaust Systems Since 1983
Milltek Sport was founded by a true car enthusiast and has grown to become one of the leading manufacturers of performance exhaust systems. In-house state-of-the-art equipment and one of the most experienced engineering teams in the industry allows Milltek to continue delivering innovative designs with uncompromising quality.

