Milltek Sport Audi A4 B7 2.0TFSI Quattro Inc DTM Cat-Back Exhaust System
The Milltek Sport exhaust system for the Audi A4 B7 2.0TFSI Quattro is engineered to enhance performance and sound, delivering a cleaner, sportier look. This cat-back exhaust system replaces the original exhaust from the catalytic converter back, allowing for improved gas flow and a more aggressive sound.
What This Exhaust System Does
This exhaust system features optimised pipework and performance silencers, which work together to reduce backpressure. Backpressure is the resistance that exhaust gases face as they exit the engine; minimising it allows the engine to perform better. With this system, you can expect:
- A richer, sportier exhaust note without excessive noise.
- A more responsive feel during acceleration, especially under load or on the motorway.
- An enhanced rear appearance for a sportier look.
- Resistance to corrosion, thanks to high-quality stainless steel construction.
While power gains from this exhaust may be modest, the improvements in sound, throttle response, and aesthetics are significant, especially when paired with other modifications like an ECU remap or upgraded intake.
Sound and Everyday Driving
Milltek has designed this system to provide a balanced tone suitable for daily driving. Compared to the factory exhaust, you will notice:
- A more pronounced, deeper sound at idle and low revs.
- A clearer tone under acceleration.
- Controlled sound levels during highway cruising, reducing cabin drone.
This makes it a great choice for both daily commutes and spirited drives.
Construction and Materials
This exhaust is crafted from T304L stainless steel, known for its durability and resistance to rust and heat. The smooth, mandrel-bent pipework ensures consistent internal diameters, promoting effortless gas flow. It is designed as a direct replacement that uses factory-style mounting points, ensuring proper alignment and security during operation.
Tailpipe Options
Choose the tailpipe finish that complements your style, with options including:
- Dual 100mm Jet
- Dual GT-100
All options maintain the same fit and sound, so your choice is purely cosmetic.
Fitment and Compatibility
This exhaust system is specifically designed for:
- Audi A4 B7 2.0TFSI Quattro models
For precise fitment details, please use the vehicle lookup tool on the site or check the “Vehicle Fitment” tab. Professional installation is recommended to ensure proper alignment and sealing, helping to maximise sound quality and reliability.

