One listing, every JP Racing Sea-Doo stage kit. Pick your model, pick your stage, pick how you want it flashed — every kit below is a complete, matched package built and tested by JP Racing Inc in Fort Myers, FL.
How the 300 packages work: Mail-In / Send ECU — ship your ECU to JP Racing Inc, 2849 Fowler Street, Fort Myers, FL 33901 and we flash and return it. Home Flasher — includes the JP Flasher unit so you can flash, change, and restore tunes at home. Please add your year, make, and model in the notes at checkout.
Every JP Racing ECU flash controls RPM limits, fuel maps, ignition timing, and throttle response, and eliminates the OEM speed limiter — for stronger throttle response and top-end speed in a reliable, safe way.
Sea-Doo 300 — Stage 1 · 79+ MPH · Install level: Beginner
(RXP 78+ MPH · RXT 79+ MPH)
Includes:
- JP Racing ECU Flash (mail-in, or the JP Flasher unit on the Home Flash Kit)
- JP Racing Rear Air Intake System — high-volume 4" marine-grade filter replaces the restrictive stock air box for improved acceleration and top speed
- JP Racing Sea-Doo Oil Catch Can Kit — stainless catch can, breather filter, and 3/4" hose; routes oil vapor out of the intake tract to keep the intercooler clean (about a 15-minute install)
Sea-Doo 300 — Stage 1+ · 81+ MPH · Install level: Intermediate
Everything in Stage 1, plus:
- Fizzle Silicone Intercooler Piping (the +TiAL packages add a genuine TiAL blow off valve setup)
- Solas Stainless Steel Wear Ring
- Solas Concord Impeller — large blade area and unique geometric blade design for remarkable thrust, acceleration, and top-end performance
Sea-Doo 300 — Stage 2 · 85+ MPH · Install level: Advanced
Everything in Stage 1, plus:
- JP Racing 17+ lb Supercharger Wheel (direct drop-in, no modification needed)
- JP Spec Calas Billet Camshaft
- Fizzle Silicone Intercooler Piping
- Fizzle SuperCooler
- OEM 161mm Wear Ring
- Solas Impeller
- Calas Valve Springs & Titanium Retainers
- Bosch VT1100 Fuel Injector Kit
- Packages with "+ BOV" add the blow off valve setup
Sea-Doo 300 — Stage 3 · 88+ MPH · Install level: Expert
Everything in Stage 1, plus:
- JP Racing 23 lb Supercharger Wheel (requires the supercharger housing to be modified)
- Fizzle Silicone Intercooler Piping
- Fizzle SuperCooler
- Solas Stainless Wear Ring, Solas Impeller & Pump Seal
- JP Spec Calas Camshaft
- Calas Valve Springs & Titanium Retainers
- Bosch Fuel Injector Kit
- AEM 340 Fuel Pump (requires fuel hanger modification)
- Fuel Pump Relay Kit, Fuel Pressure Regulator, Fuel Rail
- Fuel Lines & Fittings (measured and built)
- Open Loop Kit (requires modifying engine cooling water routing)
- Custom Tuning package: custom tuning via HP Tuners instead of the standard re-flash
Sea-Doo 325 — Stage 1 · 77+ MPH · Install level: Beginner · Retains factory warranty
Removes the factory speed limiter while keeping your factory warranty intact.
Includes:
- JP Racing Air Intake Kit
- JP Racing Oil Catch Can
- RIVA Maptuner Nano — tune and adjust your Sea-Doo right from your phone
- Fizzle BOV Kit — prevents compressor surge and improves throttle response
Sea-Doo 325 — Stage 1+ · 83+ MPH · Install level: Amateur
Includes:
- JP Racing Air Intake Kit
- JP Racing Oil Catch Can Kit
- Fizzle BOV Kit
- Unlocked MG1 ECU — ready to be flashed
- RIVA Maptuner Nano — tuning and maintenance resets from your phone
- Solas Race Impeller
Sea-Doo 325 — Stage 2 · 87+ MPH · Install level: Professional
Plug-and-play with no downtime — the unlocked ECU arrives prepped and ready.
Includes:
- JP Racing Air Intake Kit
- JP Racing Oil Catch Can
- Unlocked MG1 ECU with JP Racing Custom Calibration File
- RIVA Maptuner Nano
- Calas Valve Springs & Titanium Retainers
- Prototype Billet Camshaft
- Fizzle Turbosmart Blow Off Valve Kit
- Fizzle SuperCooler — reduces intake temps and eliminates heat fade
- Solas Race Impeller
Sea-Doo 325 — Stage 3 · 90+ MPH
A complete, matched package — plug-and-play unlocked ECU programmable with the included Maptuner Nano, no ECU downtime or shipping required. The included tuning license gives access to RIVA's tuning library and technical support.
Includes:
- Unlocked 325 ECU
- Maptuner Nano with tuning license
- JP Racing Performance Air Intake Kit
- JP Racing Oil Catch Can
- Bosch VT1100 Injectors
- New OEM Wear Ring
- Custom-Pitched Solas Impeller
- Calas Titanium Valvetrain
- Billet Camshaft
- Fizzle Z7 Charger Wheel
- Upgraded Supercharger Shaft
- Turbosmart Blow-Off Valve Kit
- Fizzle SuperCooler
- 325 Intake Manifold Girdle
GTR-X 300 — Stage 1+ · 74+ MPH
Includes:
- JP Racing ECU Flash (mail-in — ship your ECU to the address above)
- JP Racing Rear Air Intake System — high-volume 4" marine-grade filter
- JP Racing Stainless Oil Catch Can Kit — breather filter, stainless can, hose, and petcock drain valve
- Fizzle Silicone Intercooler Piping
- OEM Plastic Wear Ring with Race Pump Seal
- Solas Concord Impeller — large blade area and radial edge design for better hook-up, acceleration, and top-end speed
GTR-X 300 — Stage 2 · 80+ MPH · Install level: Advanced
Includes:
- JP Racing ECU Flash (mail-in — ship your ECU to the address above)
- JP Racing Rear Air Intake System
- JP Racing Oil Catch Can Kit (about a 15-minute install)
- JP Racing Intake Manifold Girdle — billet aluminum; prevents manifold flexing and cracking under boost
- JP Racing 17+ lb Supercharger Wheel (drop-in)
- Billet Camshaft
- Fizzle SuperCooler + Blow Off Valve Kit
- New OEM Wear Ring & Solas Impeller
- Calas Valve Springs & Titanium Retainers
- Bosch VT1100 Fuel Injectors
Please note: JP Racing strongly recommends premium octane (91+) pump fuel in your PWC. Make sure your wear ring, impeller, oil level, and spark plugs are in correct working order for best results. Stage kits are intended for competition use only; no warranties are expressed or implied, and you assume all risk modifying your PWC. Testing performed in fresh water at sea level.
