250cc Air Performance Upgrade

The key to more power in a combustion engine is managing the air flow. The more air/fuel flowing through your system, the more power your engine can generate.

In most stock mini-buggies and scooters the stock air intakes and mufflers are restricting air flow. This leads to significantly less power than the motor is capable of. You can change this by using a UNI Filter to increase your vehicle's performance. This easy modification improves the airflow greatly over the stock air intake box. After installing the components in this product, the carburetor must be tuned to ensure the proper air/fuel mixture.

This kit comes complete with a 4" long 2-stage UNI filter with 2" opening, and size 128 main jet!

When adding this modification, you will need to rejet your carburetor to re-balance the fuel/air mixture due to the increased airflow. What size jet you need to upgrade to will depend on the local elevation and the season (outside temperature) that you will be riding in.

Generally speaking, if the UNI filter is your only Air/Fuel system upgrade, you'll need a jet somewhere between 125 and 130. For most purposes below 5000', use the included 128 main jet. If you are above 5,000', please let us know and we will include more appropriate jets for your location. Feel free to call Buggy Parts NW if you have questions. For lower elevations, you might consider using a pilot jet size 40 (up from the stock 38 in a 30mm carb). Higher elevations will not need the pilot jet changed for this mod.

Note: This air filter MUST be oiled with foam filter oil and cleaned regularly. A properly oiled filter prevents dust particles and debris from getting into the carburetor and your engine. This is essential for proper operation and engine longevity. You WILL eventually destroy your engine if this filter is not oiled with the proper product.

This kit will mount as-is to all 250cc CN250 and CFMoto-based engines.

Hammerhead and Joyner 250cc buggy owners will probably need to add the intake elbow for proper fit on their buggies. The carburetor on these vehicles points directly at the back of the seats so you will need to select the intake elbow option below. Save $5 when purchasing the elbow with this package!

(Intake elbow will work with all 250cc buggies and any of our 30mm and 32mm carburetors.)

Click here to learn how to install this product!

Click here to learn how to rejet the carburetor.

The UNI Filter Oil and Cleaner products listed above as add-on items cannot be shipped Internationally.