SuperJet Waterbox – Yamaha SuperJet 4-Stroke (2021+)

Description

Give your Yamaha SuperJet 4-stroke the sound it deserves. The stock exhaust keeps things quiet, but this upgrade gives your ski a bold, race-ready tone that stands out on the water. Designed for the TR-1 engine, this waterbox enhances your ski’s personality while making install fast and simple.

Because it fits 2021 and newer models, you can bolt it in using factory mounting points. It supports OEM exhaust routing, so there’s no cutting or complicated adjustments required.

Key Features

• Fits 2021+ Yamaha SuperJet 4-stroke (TR-1 engine)
• Deep, aggressive exhaust tone
• Works with OEM exhaust routing
• Uses factory mounting locations for quick install
• TIG-welded aluminum

How to Install This Exhaust Upgrade
You can install this waterbox in a short amount of time with basic tools. Remove the stock unit, slide the manifold forward, and mount this box in its place. Worm-style clamps are recommended for the best fit.

Need help with install? Watch our full step-by-step video below »

Minor hose adjustments may be required depending on your setup.

Production Time
Each unit is built to order. Please allow 5–7 business days before shipping.

Specs

• Material: TIG-welded aluminum
• Weight: Approx. 4.5 lbs
• Fitment: Yamaha SuperJet 4-stroke (2021–current)
• Engine: TR-1 1049cc 3-cylinder

What’s Included

• (1) Exhaust waterbox for Yamaha SuperJet 4-stroke

Install Video