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KG Booster Airbox 30 mm for KZ Kart | Intake Silencer with Sprint Filter
The KG Booster Airbox has been developed specifically for modern KZ and KZ2 gearbox karts. Combining an aerodynamically optimised housing with a genuine Sprint Filter cartridge, this 30 mm Airbox delivers clean airflow, stable carburettor tuning and reliable filtration throughout demanding race weekends. If you're looking to buy a CIK-FIA homologated KZ Airbox, the KG Booster is built for exactly that purpose.
The latest KG Airbox replaces the previous POWER and NITRO models and benefits from extensive CFD (Computational Fluid Dynamics) development. Instead of simply increasing airflow, the internal design focuses on delivering a smooth and consistent air supply to the carburettor. This helps the engine respond predictably across the entire rev range.
On a modern KZ engine, even small changes in airflow can affect carburettor settings. That's why the Booster Airbox was designed around 30 mm intake trumpets, improving airflow where high-revving gearbox engines need it most. Whether you're racing in changing weather or long final races, the air supply remains consistent and easy to tune.
Inside the Kart Airbox is a genuine Sprint Filter P037 cartridge. Unlike traditional foam filters, the patented polyester filter media provides excellent airflow while effectively trapping dust, dirt and other contaminants. The result is clean intake air with minimal pressure loss and stable engine performance throughout the race.
Developed for Modern KZ Engines
The KG Booster Airbox has been engineered specifically for KZ and KZ2 gearbox karts using 30 mm intake trumpets. The optimised internal airflow reduces pressure losses and supports consistent carburettor tuning from low to maximum engine speed.
Genuine Sprint Filter Technology
Every Sprint Filter Airbox is equipped with the proven P037 polyester filter element featuring a 37-micron filtration rating. The filter offers exceptionally high airflow while maintaining excellent filtration efficiency, making it ideal for high-performance kart engines.
CIK-FIA Homologated
The Booster Airbox complies with current CIK-FIA regulations for both intake noise and filtration performance. At the same time, the internal geometry has been optimised to maximise airflow efficiency without compromising reliability.
Easy Installation
The complete mounting kit allows quick installation on a wide range of KZ chassis and carburettor configurations. Straight and angled intake adapters are included, making it easy to adapt the Airbox to different engine layouts.
Comparison
| Feature | KG Booster 30 mm (KZ) | KG Booster 23 mm (OK) |
|---|---|---|
| Engine Class | KZ / KZ2 Gearbox Kart | OK / OKJ / OKN / OKNJ |
| Intake Trumpets | 30 mm | 23 mm |
| Sprint Filter P037 | Included | Included |
| CIK-FIA Homologated | Yes | Yes |
| Application | Gearbox Kart | Direct Drive Kart |
Buying Guide
If you race a KZ or KZ2 kart, the 30 mm KG Booster Airbox is the correct version. It has been designed around the airflow requirements of modern gearbox engines and combines efficient intake design with proven Sprint Filter technology. Drivers using OK, OKJ or OKN engines should choose the dedicated 23 mm version instead.
Package Contents
- KG Booster Airbox 30 mm
- Genuine Sprint Filter P037 cartridge
- Straight intake adapter
- Angled intake adapter
- Carburettor clamp
- Chassis mounting bracket
- Rain cover
Key Benefits
- Designed specifically for KZ and KZ2 gearbox karts.
- Optimised internal airflow developed using CFD analysis.
- Genuine Sprint Filter P037 with patented polyester media.
- Excellent airflow with minimal pressure loss.
- Stable carburettor tuning under changing track conditions.
- CIK-FIA homologated.
- Complete mounting kit included.
- Ideal for professional racing and ambitious kart drivers.
Summary: The KG Booster Airbox combines advanced airflow design with genuine Sprint Filter technology to provide reliable filtration and consistent engine performance. Developed specifically for modern KZ racing engines, it delivers the airflow and stability required for competitive kart racing.