RIVA Yamaha 1.8/1.9L SVHO/SHO/HO Pro-Series Waterbox

Developed on our in-house Dyno and tested extensively on the water, this waterbox features radiused exhaust tubes and end caps for optimum exhaust flow. Unique exhaust baffle will increase the low-end power and mid-range pull of your Yamaha watercraft. Delivers up to 15hp on modified engines along with significant torque gains. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to prevent corrosion. A must for modified motors.

Key Features:

Delivers up to 15hp on modified craft!
Machined hose flanges for reliable coupler retention.
Radiused exhaust tubes & end caps.
Powder coated to prevent corrosion.

Applications:
2026 Yamaha FX Cruiser HO (1.9L)
2026 Yamaha FX Cruiser SVHO
2026 Yamaha FX HO (1.9L)
2026 Yamaha FX Limited SVHO
2026 Yamaha FX SVHO
2026 Yamaha GP HO (1.9L)
2026 Yamaha GP SVHO (1.8L)
2026 Yamaha VX Cruiser HO (1.9L)
2026 Yamaha VX Limited HO (1.9L)
2025 Yamaha FX Cruiser HO (1.9L)
2025 Yamaha FX Cruiser SVHO
2025 Yamaha FX HO (1.9L)
2025 Yamaha FX Limited SVHO
2025 Yamaha FX SVHO
2025 Yamaha GP HO (1.9L)
2025 Yamaha GP SVHO (1.8L)
2025 Yamaha VX Cruiser HO (1.9L)
2025 Yamaha VX Limited HO (1.9L)
2024 Yamaha FX Cruiser HO (1.9L)
2024 Yamaha FX Cruiser SVHO
2024 Yamaha FX HO (1.9L)
2024 Yamaha FX Limited SVHO
2024 Yamaha FX SVHO
2024 Yamaha GP HO (1.9L)
2024 Yamaha GP SVHO (1.8L)
2024 Yamaha VX Cruiser HO (1.9L)
2024 Yamaha VX Limited HO (1.9L)
2023 Yamaha FX Cruiser HO (1.8L)
2023 Yamaha FX Cruiser SVHO
2023 Yamaha FX HO (1.8L)
2023 Yamaha FX Limited SVHO
2023 Yamaha FX SVHO
2023 Yamaha GP1800R HO
2023 Yamaha GP1800R SVHO
2023 Yamaha VX Cruiser HO (1.8L)
2023 Yamaha VX Limited HO (1.8L)
2022 Yamaha FX Cruiser HO (1.8L)
2022 Yamaha FX Cruiser SVHO
2022 Yamaha FX HO (1.8L)
2022 Yamaha FX Limited SVHO
2022 Yamaha FX SVHO
2022 Yamaha GP1800R HO
2022 Yamaha GP1800R SVHO
2022 Yamaha VX Cruiser HO (1.8L)
2022 Yamaha VX Limited HO (1.8L)
2021 Yamaha FX Cruiser HO (1.8L)
2021 Yamaha FX Cruiser SVHO
2021 Yamaha FX HO (1.8L)
2021 Yamaha FX Limited SVHO
2021 Yamaha FX SVHO
2021 Yamaha GP1800R HO
2021 Yamaha GP1800R SVHO
2021 Yamaha VX Cruiser HO (1.8L)
2021 Yamaha VX Limited HO (1.8L)
2020 Yamaha FX Cruiser HO (1.8L)
2020 Yamaha FX Cruiser SVHO
2020 Yamaha FX HO (1.8L)
2020 Yamaha FX Limited SVHO
2020 Yamaha FX SVHO
2020 Yamaha GP1800R HO
2020 Yamaha GP1800R SVHO
2020 Yamaha VX Cruiser HO (1.8L)
2019 Yamaha FX Cruiser HO (1.8L)
2019 Yamaha FX Cruiser SVHO
2019 Yamaha FX HO (1.8L)
2019 Yamaha FX Limited SVHO
2019 Yamaha FX SVHO
2019 Yamaha GP1800R
2019 Yamaha VX Cruiser HO (1.8L)
2019 Yamaha VXR (1.8L)
2018 Yamaha FX Cruiser HO (1.8L)
2018 Yamaha FX Cruiser SVHO
2018 Yamaha FX HO (1.8L)
2018 Yamaha FX Limited SVHO
2018 Yamaha FX SVHO
2018 Yamaha GP1800
2018 Yamaha VX Cruiser HO (1.8L)
2018 Yamaha VXR (1.8L)
2017 Yamaha FX Cruiser HO (1.8L)
2017 Yamaha FX Cruiser SVHO
2017 Yamaha FX HO (1.8L)
2017 Yamaha FX Limited SVHO
2017 Yamaha FX SVHO
2017 Yamaha GP1800
2017 Yamaha VX Cruiser HO (1.8L)
2017 Yamaha VXR (1.8L)
2016 Yamaha FX Cruiser HO (1.8L)
2016 Yamaha FX Cruiser SHO (1.8L)
2016 Yamaha FX Cruiser SVHO
2016 Yamaha FX HO (1.8L)
2016 Yamaha FX SVHO
2016 Yamaha FZR
2016 Yamaha FZS
2016 Yamaha VX Cruiser HO (1.8L)
2016 Yamaha VXR (1.8L)
2016 Yamaha VXS (1.8L)
2015 Yamaha FX Cruiser HO (1.8L)
2015 Yamaha FX Cruiser SHO (1.8L)
2015 Yamaha FX Cruiser SVHO
2015 Yamaha FX HO (1.8L)
2015 Yamaha FX SHO (1.8L)
2015 Yamaha FX SVHO
2015 Yamaha FZR
2015 Yamaha FZS
2015 Yamaha VXR (1.8L)
2015 Yamaha VXS (1.8L)
2014 Yamaha FX Cruiser HO (1.8L)
2014 Yamaha FX Cruiser SHO (1.8L)
2014 Yamaha FX HO (1.8L)
2014 Yamaha FX SHO (1.8L)
2014 Yamaha FX SVHO
2014 Yamaha FZR
2014 Yamaha FZS
2014 Yamaha VXR (1.8L)
2014 Yamaha VXS (1.8L)
2013 Yamaha FX Cruiser HO (1.8L)
2013 Yamaha FX Cruiser SHO (1.8L)
2013 Yamaha FX HO (1.8L)
2013 Yamaha FX SHO (1.8L)
2013 Yamaha FZR
2013 Yamaha FZS
2013 Yamaha VXR (1.8L)
2013 Yamaha VXS (1.8L)
2012 Yamaha FX Cruiser HO (1.8L)
2012 Yamaha FX Cruiser SHO (1.8L)
2012 Yamaha FX HO (1.8L)
2012 Yamaha FX SHO (1.8L)
2012 Yamaha FZR
2012 Yamaha FZS
2012 Yamaha VXR (1.8L)
2012 Yamaha VXS (1.8L)
2011 Yamaha FX Cruiser HO (1.8L)
2011 Yamaha FX Cruiser SHO (1.8L)
2011 Yamaha FX HO (1.8L)
2011 Yamaha FX SHO (1.8L)
2011 Yamaha FZR
2011 Yamaha FZS
2011 Yamaha VXR (1.8L)
2011 Yamaha VXS (1.8L)
2010 Yamaha FX Cruiser HO (1.8L)
2010 Yamaha FX Cruiser SHO (1.8L)
2010 Yamaha FX HO (1.8L)
2010 Yamaha FX SHO (1.8L)
2010 Yamaha FZR
2010 Yamaha FZS
2009 Yamaha FX Cruiser HO (1.8L)
2009 Yamaha FX Cruiser SHO (1.8L)
2009 Yamaha FX HO (1.8L)
2009 Yamaha FX SHO (1.8L)
2009 Yamaha FZR
2009 Yamaha FZS
2008 Yamaha FX Cruiser SHO (1.8L)
2008 Yamaha FX SHO (1.8L)