DYNOJET Jet Kit - Yamaha YXR660 Rhino Q425

If you're running a YXR660 Rhino and want measurable power gains without guesswork, the DYNOJET Jet Kit delivers real results through precision fuel mapping. This fully adjustable system lets you optimize your engine's air-fuel ratio across the RPM band, unlocking 5–15% additional power depending on your setup and chosen stage. Whether you're stock and looking for a modest bump or running modified components and chasing peak performance, there's a stage engineered for your build.

The modular stage system means you only pay for what you need, and installation is straightforward for anyone comfortable with basic carb work. Better throttle response, improved driveability, and genuine horsepower—not marketing promises.

• Manufacturer: DYNOJET
• MPN: Q425
• Vehicle: Yamaha YXR660 Rhino
• Type: Jet Kit
• Fully adjustable calibration
• Stage 1: ~5% power increase
• Stage 2: ~8% power increase
• Stage 3: ~10–15% power increase
• Stage 7: Race-only configuration
• Works with: Stock/modified filters
• Works with: Stock/modified pipes
• Improves throttle response
• Enhances fuel mapping precision
• Bolt-on installation