Take your Yamaha GP to the next level with our Sierra Fullboost Stage 1, engineered to deliver stronger acceleration, better throttle response, and higher top speed — all while keeping reliability on point.

💨 Real Performance Gains

Feel the difference instantly with quicker throttle response and smoother power delivery across the entire RPM range.

🚀 Top Speed Upgrade

Reach 81–82 MPH with improved stability and consistency on the water.

⚙️ Includes:

✔️ NS Fullboost Air Intake

✔️ NS Fullboost Ribbon Delete

✔️ NS Map Tuning – Sierra Fullboost

🔥 Benefits:

• Faster throttle response
• Increased airflow = more power
• Removes factory restrictions
• Optimized tuning for max performance

💲 Price: $650

💥 Perfect setup for riders who want serious performance without going full build.