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The B5 S4 is a car that has garnered a reputation for its performance and tuning potential. With its twin-turbocharged V6 engine, it offers a thrilling driving experience. In this review, we will explore the modifications made to a specific B5 S4, which now boasts 450 horsepower thanks to a Milltek exhaust system and an APR ECU tune.
Overview of the B5 S4
The Audi B5 S4, produced from 1997 to 2002, is known for its combination of luxury and performance. It features a 2.7-liter V6 engine with twin turbochargers, which originally produced around 250 horsepower. However, many enthusiasts have taken to modifying this platform to unlock its full potential.
Performance Modifications
Milltek Exhaust System
The Milltek exhaust system is a popular upgrade among B5 S4 owners. It enhances the vehicle’s sound and reduces back pressure, allowing the engine to breathe more freely. This results in improved performance and a more aggressive exhaust note.
APR ECU Tune
The APR ECU tune is another critical modification that significantly increases the power output of the B5 S4. This tune recalibrates the engine’s parameters, optimizing fuel delivery and timing for maximum performance. With this tune, the B5 S4 can achieve up to 450 horsepower, transforming the driving experience.
Driving Experience
With these modifications, the B5 S4 delivers an exhilarating driving experience. The power delivery is smooth and linear, making it easy to harness the 450 horsepower. The combination of the Milltek exhaust and APR tune provides a perfect balance of sound and performance, ensuring that every drive is memorable.
Pros and Cons
- Pros:
- Significant horsepower increase
- Aggressive exhaust note
- Enhanced driving dynamics
- Cons:
- Potential for increased wear on engine components
- Higher fuel consumption
- Cost of modifications
Conclusion
The B5 S4, when equipped with a Milltek exhaust and an APR ECU tune, becomes a formidable performance machine. With 450 horsepower at its disposal, it offers a thrilling driving experience that is hard to match. While there are pros and cons to consider, the modifications can elevate the B5 S4 to new heights, making it a beloved choice among enthusiasts.