NOX Noise Filter 30mm Silver/Black (KZ-KZ2) 77mm Rear Hub Whether you’re replacing worn parts

Whether you’re replacing worn parts or building a new setup

4 configurable alarm LEDs and shift lights

Durable silver and black finish

the CZ RS 219 chain delivers consistent performance lap after lap

classic styling with OMP branding

NOX Noise Filter 30mm Silver/Black (KZ-KZ2) 77mm Rear Hub Whether you’re replacing worn partsThe NOX Noise Filter D. 30mm Silver Black is a high quality intake silencer designed to reduce induction noise on gearbox kart engines while maintaining stable airflow and consistent engine response. With a 30mm inlet diameter, this NOX filter is commonly used on KZ and KZ2 engines, as well as other gearbox kart applications requiring a 30mm intake connection. Its internal noise damping design helps meet circuit sound limits without compromising