DYNOJET Jet Kit - Triumph 5121

The DYNOJET Jet Kit 5121 is a direct-response tuning solution for Triumph engines that adds measurable power and improves throttle response across the RPM range. Whether you're running stock components or a modified setup, this fully adjustable kit lets you optimize fuel delivery to match your specific engine configuration and riding conditions. Stop leaving performance on the table—precision jetting transforms how your bike accelerates and performs.

Performance by Stage:

• Stage 1: ~5% power increase
• Stage 2: ~8% power increase
• Stage 3: ~10-15% power increase
• Stage 7: Race-only configuration

Technical Specifications:

• Manufacturer: DYNOJET
• MPN: 5121
• Application: Triumph engines
• Fully adjustable jetting
• Compatible: Stock engines
• Compatible: Mildly modified engines
• Works with: Stock/modified pipes
• Works with: Stock/modified filters
• Individual air filter compatible
• Improves power delivery
• Enhances driveability
• Stage 3+: High-RPM focus
• Stage 7: Race-only use
• Note: Stage 3 may affect street driveability
• Note: Not compatible with all motor variants