M-JET 4-inch Intake System for Sea-Doo 1503 & 1603 Engines
M-JET 4-inch Intake System for Sea-Doo 1503 & 1603 Engines
M-JET 4-inch Intake System for Sea-Doo 1503 & 1630 Engines
More air. Better throttle response. Sportier sound.
The M-JET 4-inch Intake System was developed for Sea-Doo models with supercharged Rotax 1503 4-TEC and Rotax 1630 ACE engines. Thanks to the larger 4-inch intake path and the high-quality K&N air filter, the engine receives significantly freer air access than with the stock intake.
The result is more direct throttle response, a sportier intake sound, and better air supply — especially in supercharged engines that rely on sufficient air under high load. The engine can breathe more freely, responds more spontaneously to throttle commands, and feels more lively overall.
The system is ideal for riders looking to get more performance, more sound, and a cleanly crafted upgrade out of their Sea-Doo.
Benefits
- 4" intake system for improved airflow
- High-quality marine air filter
- Freer intake path compared to the stock solution
- More direct throttle response
- Sporty intake sound
- Ideal for naturally aspirated and supercharged engines
- Clean look with M-JET branding
- Robust construction for use in watersports
- Plug-&-play oriented performance upgrade, depending on model and setup
Why a 4-inch intake system?
The stock intake is designed for noise reduction, standard comfort, and universal use. The M-JET 4-inch intake system, by contrast, focuses on freer airflow and a more direct connection to the engine. The system is only compatible with vehicles equipped with a supercharger.
The larger diameter and open marine filter allow the engine to draw in air more easily. This improves throttle response and ensures a sportier riding feel. The freer intake is especially noticeable when accelerating, exiting corners, and at full load.
The sound also becomes much more present: throatier, sportier, and in line with the performance character of your Sea-Doo.
The version with crankcase ventilation is always supplied. If your vehicle does not have crankcase ventilation, you can simply plug the connection.
