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Big Discount Performance Stg4 Kit / Pro R 330hp Sku: 15-336-4 Quality Assured [kQtYWrnR]

$79.99 $255.99 -69%

Performance STG4 Kit for Pro R 330hp Elevate your Pro R 330hp to new heights with our Performance STG4 Kit. This comprehensive package is designed to unlock an additional 100 HP, transforming your vehicle's performance and efficiency. With cutting-ed

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Big Discount Performance Stg4 Kit / Pro R 330hp Sku: 15-336-4 Quality Assured [kQtYWrnR]

Performance STG4 Kit for Pro R 330hp

Elevate your Pro R 330hp to new heights with our Performance STG4 Kit. This comprehensive package is designed to unlock an additional 100 HP, transforming your vehicle's performance and efficiency. With cutting-edge components and advanced engineering, this kit is a game-changer for any Pro R enthusiast.

Advanced Features and Specifications

Our STG4 Kit is a powerhouse of performance, featuring a brand-new stainless steel slip-on exhaust for enhanced airflow and noise reduction. The clutch kit includes Snypr weights and springs for improved belt tension and responsiveness. The Cyclone clutch cover cools the belt up to 30 degrees, ensuring optimal performance under heavy loads. The Air Extreme Head CNC ported head, oversized intake and exhaust valves, and custom-tuned .430 lift cams further maximize power and efficiency. Our Performance clutch springs provide superior belt tension, offering a more responsive feel and gains in top speeds and low-end power.

Practical Benefits and Target Audience

This kit is perfect for those seeking to maximize their Pro R 330hp's potential. With gains in both power and efficiency, you'll enjoy a more dynamic ride with improved acceleration and top speeds. The STG4 Kit is ideal for daily drivers, track enthusiasts, and anyone looking to take their Pro R to the next level. However, it's important to note that the ECU must be sent in for tuning, and the head may require core exchange or purchase for a complete upgrade. Follow the provided steps for first-time startup to ensure a smooth and successful installation.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

A brilliant purchase that I'd make again in a heartbeat.

- Christopher Flores.

January 17, 2026

Absolutely no complaints!

The product is incredibly responsive.

- Sawyer A..

January 17, 2026

Absolutely no complaints!

The product has a very sleek profile.

- Nancy O..

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