05/25/2026
The Ultimate 450R/500R Performance Upgrade Kit !!!
80+ HP GAIN. NO TUNE REQUIRED. Bolt on and Go! 🚤🔥
The KONG Performance Mercury Racing 450R / 500R Upgrade Kit is changing the game for high-performance outboards.
Our complete bolt-on package was engineered to deliver MASSIVE real-world gains in acceleration, mid-range pull, and top-end power while maintaining factory drivability and reliability.
✅ 80+HP gains
✅ NO tuning required
✅ True Bolt-on and go installation
✅ Water tested and Engine Dyno tested
✅ Record-setting results at Lake of the Ozarks
This is not just a throttle body or intake upgrade. Every component was designed to work together as a complete system.
KIT INCLUDES:
⚫ KONG Billet High Flow Nose Drive
⚫ KONG Billet 100mm Throttle Body
⚫ KONG High Flow Intake System
⚫ Complete Hardware Package
Installation takes only 1–2 hours per engine and the difference is felt IMMEDIATELY the second you hit the throttle.
Cruises smooth like stock… until hammer the throttle and we guarantee you will feel and love the extra power.
If you want your 450R or 500R to perform at another level with a simple installation, this is for you.
💯 Money Back Guarantee
📈 Dyno Proven
🏁 Built and Engineered by KONG Performance
KONG Kits for 450R and 500R are in stock and ready to ship.
https://www.kongperformance.com/collections/kong-450r-500r-upgrade-packages/products/mercury-racing-450r-supercharger-upgrade-kit-by-kong-performance