Proven Performance Parts Volkswagen MK8 GTI Stage 3 Proven Package 495HP+

520HP-Capable Performance. Complete Hardware Solution. Professionally Curated. Engineered for Enthusiasts.

The Proven Performance Parts Stage 3 Package is the ultimate hardware upgrade solution for Volkswagen MK8 GTI owners seeking to dramatically increase power, cooling efficiency, 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 GTI into a high-output, track-ready performance machine.

Every component has been 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. 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 temps. Compared to the factory turbo, the PowerMax provides 20% more compressor flow and 37% more turbine flow, resulting in significantly higher power potential and improved boost efficiency.

To complement this turbine upgrade, the package includes a 3.5” catless downpipe designed for MK8 GTI models without OPF. This unrestricted design dramatically reduces backpressure and increases exhaust flow, allowing the turbo to spool faster and operate more freely. TIG-welded 304 stainless steel construction ensures durability under repeated high-heat cycles and hard driving.

Supporting cooling is one of the most critical aspects of a Stage 3 build, and the included high-performance MK8 R intercooler upgrade provides outstanding charge-air temperature management. With a 99% larger core volume and 47% more airflow than stock, the intercooler helps maintain consistent power even during extended pulls or hot weather conditions. This eliminates heat-soak issues that often arise with high-boost builds.

To further improve airflow and boost stability, the package includes aerospace-grade titanium charge pipes. The factory plastic pipes are prone to cracking under elevated boost pressure, whereas the titanium replacements are stronger, heat-resistant, and designed for completely unrestricted flow. Their smooth interior surfaces reduce turbulence and improve throttle response while adding an eye-catching burnt titanium finish to the engine bay.

The system also includes a full carbon fibre air intake, engineered to deliver cold, dense air directly to the turbocharger. A large high-flow filter and sealed carbon housing minimise heat soak and maximise turbo efficiency, while also providing a sharper, more aggressive induction sound under acceleration.

Finally, the package is completed with a premium full titanium valved cat-back exhaust system. This lightweight titanium exhaust dramatically improves exhaust flow while reducing overall vehicle weight. With remote-controlled valves, drivers can switch effortlessly between a refined, quiet mode and a fully open, aggressive performance mode. The system produces a deep, resonant tone with precise TIG-welded craftsmanship and minimal cabin drone.

Performance Expectations & Tuning Requirements

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

• 520BHP / 383kW at the crank, depending on the tuner and fuel

• Up to 576Nm (425 ft-lb) of torque

• Faster turbo spool and reduced lag

• Sharper throttle response

• Lower intake temperatures and far more consistent performance

• Increased top-end acceleration and boosted mid-range power

Because this is a full hardware upgrade package, tuning quality is absolutely essential.
We do not offer tuning, ECU flashing, or calibration services. Customers must organise their own tuner, and the final results will vary depending on tune quality, fuel used, engine condition, and environmental factors.

A poor-quality tune may lead to:

• Lower-than-expected power

• Reduced reliability or inconsistent drivability

• Knock, misfires, or poor AFR targeting

• Turbocharger over-speeding or under-utilisation

For best results, we strongly recommend selecting a reputable tuner experienced with EA888 EVO4 Stage 3 platforms.

Why Upgrade to a Stage 3 Package?

A full Stage 3 system is designed for drivers seeking the highest level of performance while maintaining OEM drivability and reliability. Every component in this package plays a vital role — from improved airflow and cooling to upgraded boost pathways and exhaust flow.

Unlike piecing together parts separately, this complete package ensures:

• All components work together seamlessly

• Maximum efficiency and horsepower potential

• Improved thermal performance and reduced heat soak

• Strengthened boost plumbing for high pressure

• A balanced, race-inspired exhaust tone

• Elevated engine bay aesthetics and durability

This is the most comprehensive turnkey hardware solution available for MK8 GTI owners determined to push beyond Stage 1 or Stage 2 limitations.

Vehicle Fitment

• Volkswagen Golf GTI MK8 (2020+)

• 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 road regulations. Customers are responsible for ensuring legal use in their region and understanding the impact of performance modifications on warranty and emissions compliance