Description
Milltek Sport Exhaust Muffler System for Audi S4 B7 Avant (Combi) 4.2L V8
Enhance the sonorous roar of your Audi S4 B7 Avant (2004–2008) with the Milltek Sport exhaust muffler system, engineered specifically for the 4.2L V8 engine. Designed to amplify the car’s performance and acoustics without compromising daily drivability, this exhaust combines British engineering precision with Audi’s motorsport heritage. Below’s a detailed breakdown of its features, compatibility, and benefits
Key Features
- Tailored for the S4 B7 Avant (Combi):
- Precision fitment for the wagon’s chassis and bumper cutouts.
- Mandrel-bent stainless steel construction (T304 grade) for durability and corrosion resistance.
- Available in resonated (quieter, refined tone) or non-resonated (aggressive, race-inspired) configurations.
- Performance & Sound:
- Dual Exit Tips: Signature Milltek oval or round tips (90–102mm diameter), polished or black ceramic-coated.
- V8 Symphony: Deep, throaty exhaust note under acceleration, mellow cruising tone.
- Flow Optimization: Reduced backpressure for marginal horsepower/torque gains (~5–10 HP).
- Valved Options (Optional):
- Remote-controlled valves for adjustable sound levels (loud for track, quiet for highway).
Compatibility
- Model: Audi S4 B7 Avant (Combi) (2004–2008) with 4.2L V8 (40v FSI engine code BHW/BHF).
- Exhaust Layout: Axle-back or cat-back systems (confirm fitment with Milltek part numbers).
- Trim Compatibility: Matches OEM bumper design (no cutting required).
Technical Specifications
- Material: T304 stainless steel (system) / T409 stainless (optional for budget-friendly versions).
- Diameter: 63–76mm piping (varies by configuration).
- Weight Savings: ~15–20% lighter than OEM mufflers.
- Emissions Compliance: Retains factory catalytic converters (cat-back systems are emissions-friendly).