The Proven Performance Parts Stage 3 Package is the ultimate hardware upgrade solution for Audi S3 8Y owners seeking to dramatically increase power, cooling efficiency, turbo response, and overall performance capability. Designed around the Garrett PowerMax turbocharger and supported by premium airflow, cooling, exhaust, and durability upgrades, this package transforms the S3 into a high-output, quattro-driven, track-ready performance machine.

Every component has been carefully selected to work together in harmony — providing maximum reliability and power potential when paired with a high-quality custom Stage 3 tune.

Please note: We do not provide tuning services. You will need to organise your own professional tuner, and the final performance results will depend entirely on the quality, accuracy, and safety of the calibration. Poor tuning may significantly reduce performance, reliability, and driving quality.

Complete Hardware Package Overview

At the heart of the Stage 3 system is the Garrett PowerMax turbocharger, a direct-fit upgrade capable of supporting up to 520HP on the EA888 EVO4 platform found in the Audi S3 8Y. This turbo features modern compressor and turbine wheel aerodynamics, a fully machined speed sensor port, increased airflow capacity, and high-temperature Mar-M alloy construction capable of tolerating 1050°C turbine temperatures.

Compared to the factory turbocharger, the PowerMax provides:

• 20% more compressor flow
• 37% more turbine flow
• Substantially higher horsepower potential
• Improved boost efficiency and top-end performance

To support this turbo upgrade, the package includes a 3.0” catless downpipe engineered specifically for Audi S3 8Y models without OPF. This unrestricted design dramatically reduces exhaust backpressure, allowing the turbocharger to spool faster and operate more efficiently.

Manufactured from precision TIG-welded 304 stainless steel, the downpipe delivers exceptional durability under extreme heat and repeated high-performance driving.

Supporting cooling is one of the most critical aspects of any Stage 3 build. This package includes a high-performance front-mount intercooler upgrade, designed to dramatically improve charge-air cooling efficiency.

Featuring a significantly increased core volume and airflow capacity compared to factory, this intercooler provides:

• Lower intake air temperatures
• Reduced heat soak during repeated pulls
• Consistent power delivery in hot conditions
• Increased reliability at high boost levels

This ensures the turbocharger can perform at its full potential without thermal limitations.

To further improve airflow and boost reliability, the system includes aerospace-grade titanium charge pipes.

The factory plastic charge pipes can become a failure point under elevated boost pressure. In contrast, these titanium replacements offer:

• Significantly increased strength and durability
• Improved resistance to heat and pressure
• Completely unrestricted airflow
• Faster throttle response and boost delivery

Their signature burnt titanium finish also enhances engine bay aesthetics.

The intake system is upgraded with a full carbon fibre air intake, engineered to deliver cold, dense air directly to the turbocharger.

Featuring a large high-flow air filter and sealed carbon housing, this intake provides:

• Maximum airflow efficiency
• Reduced heat soak
• Improved turbocharger performance
• Sharper, more aggressive induction sound

Completing the package is a full titanium valved cat-back exhaust system, engineered for maximum performance and driving enjoyment.

Constructed from lightweight titanium, this exhaust provides:

• Improved exhaust flow
• Reduced vehicle weight
• Enhanced turbo efficiency
• Exceptional durability

The integrated valve system allows drivers to switch between:

• Quiet, refined driving mode
• Fully open, aggressive performance mode

Delivering a deep, aggressive tone with minimal cabin drone.

Performance Expectations & Tuning Requirements

With all hardware installed and supported by a properly calibrated custom Stage 3 tune, this package is capable of producing up to:

520 BHP / 383 kW at the crank (depending on tuner and fuel)

Up to 576 Nm of torque

Additional performance benefits include:

• Faster turbo spool and reduced lag
• Sharper throttle response
• Lower intake air temperatures
• More consistent power delivery
• Stronger mid-range acceleration
• Significantly improved top-end performance

Because this is a full Stage 3 hardware package, tuning quality is absolutely critical.

We do not offer tuning or ECU calibration. Final results depend on:

• Tune quality
• Fuel type (98RON / Ethanol blends)
• Engine condition
• Supporting modifications

Poor tuning may result in:

• Reduced performance
• Reliability issues
• Knock or misfires
• Poor drivability
• Turbocharger inefficiency

For best results, we strongly recommend choosing a professional tuner experienced with EA888 EVO4 Audi S3 Stage 3 builds.

Why Upgrade to a Stage 3 Package?

This Stage 3 system is designed for drivers who want to unlock the full performance potential of the Audi S3 8Y while maintaining reliability and drivability.

Unlike piecing together parts individually, this complete package ensures:

• All components work together seamlessly
• Maximum horsepower and efficiency
• Improved cooling and thermal performance
• Strengthened boost pathways
• Optimised exhaust flow
• Race-inspired sound and driving experience
• Improved durability and long-term reliability

This is the ultimate turnkey Stage 3 hardware solution for Audi S3 owners ready to move beyond Stage 1 and Stage 2 performance levels.

Vehicle Fitment

Audi S3 8Y (2021+)

EA888 EVO4 quattro platform

Compatible with vehicles without OPF (for downpipe fitment)

Important Notice

This Stage 3 hardware package is intended for off-road or motorsport use only and may not comply with local emissions or road regulations.

Customers are responsible for:

• Ensuring compliance with local laws
• Understanding warranty implications
• Ensuring proper installation and tuning