Sea-doo GTR-x 300 Stage 2 [80+MPH]

Unleash the Full Potential of Your Sea-Doo GTR-X 300 with JP Racing Inc. Performance Package

Take your Sea-Doo GTR-X 300 to the next level with JP Racing Inc’s elite lineup of high-performance upgrades — engineered for riders who demand maximum speed, throttle response, and reliable power on the water.

🔧 ADVANCED INSTALLATION LEVEL – Built for Serious Enthusiasts

🔥 JP RACING INC ECU FLASH
Get ready to unlock true performance. Our ECU Flash rewrites your watercraft’s brain to optimize RPM limits, fuel maps, ignition timing, and throttle response. We remove OEM speed limiters completely, giving you raw, unrestricted power. Expect crisp throttle response, higher top speed, and smoother acceleration — all while maintaining reliability.

📦 ECU must be shipped to JP Racing Inc. for flashing.
Shipping Address:
JP Racing Inc.
3132 Palm Ave, Unit 10
Fort Myers, FL 33901

🌪 JP RACING INC REAR AIR INTAKE SYSTEM
Feed your supercharged engine the air it craves. This 4” high-flow marine-grade intake replaces the restrictive stock airbox, delivering cooler, denser air for explosive acceleration and increased top speed. Easy install and full engine bay access make it a must-have mod.

💨 JP RACING INC OIL CATCH CAN KIT
Protect your power. Our oil catch can system removes performance-robbing oil vapors before they can clog your intercooler or intake. Enjoy cleaner air, better combustion, and extended engine life. Includes everything for a simple, 15-minute install.

🧱 JP RACING INC INTAKE MANIFOLD GIRDLE
Reinforce your intake manifold for high-boost applications. Our billet aluminum girdle prevents flexing and cracking under extreme pressure, ensuring long-term durability and maintaining consistent manifold seal — a must for high-performance builds pushing serious power.

🌀 JP RACING INC 300 SUPERCHARGER WHEEL
Upgrade your boost with our 17+ lb drop-in supercharger wheel. Designed for maximum airflow and efficiency.

🛠 BILLET CAMSHAFT
More lift. More duration. More power. Precision-machined for peak performance and durability at high RPMs.

❄️ FIZZLE SUPER COOLER + BLOW OFF VALVE KIT
Cooler charge air equals more horsepower. Upgrade your cooling system with high-efficiency components designed to handle serious boost and heat.

⚙️ NEW OEM WEAR RING + SOLAS IMPELLER
Put the power to the water with improved hook-up and acceleration. 

💪 CALAS VALVE SPRINGS & TITANIUM RETAINERS
Built to handle high boost and aggressive cam profiles without valve float. Essential for high-revving performance setups.

💉 BOSCH VT1100 FUEL INJECTORS
Fuel your horsepower gains with these high-flow injectors. Designed to keep your engine running strong and safe under heavy load.

Important Information – ECU Flashing Service

ECU SHIPPING REQUIRED *Unless Remote adapter is purchased*
To perform the ECU Reflash, you must send your ECU via UPS to the address below:

JP RACING INC
3132 Palm Ave
Fort Myers, FL 33901

Please include your contact information and order number inside the package for proper identification.

Fuel & Maintenance Recommendations

• We highly recommend using premium fuel (91 octane or higher) to ensure optimal performance and engine safety.

• Before installing your performance parts, please make sure your wear ring, impeller, spark plugs, and oil level are all in good condition and properly maintained. Also 2022 Ride Plate issue can cause slow speeds.

Disclaimer

JP Racing Inc. Stage Kits are intended for competition use only.
No warranties are expressed or implied. By installing these modifications, you assume full responsibility and risk associated with altering your personal watercraft (PWC).