The Active Noise Filter D.23mm Red/Black is designed to reduce intake noise on modern direct-drive kart engines while preserving smooth airflow and consistent engine response.

With a 23mm inlet diameter, this active intake silencer is commonly used on OK and OKJ kart engines, as well as other applications requiring a 23mm intake connection. Its internal noise-dampening design helps meet circuit sound regulations without negatively affecting carburation or throttle performance.

Finished in a distinctive red and black colour scheme, this noise filter combines visual appeal with durable construction. Lightweight and easy to fit, it is ideal for both competition and testing use.

Key Features:

• 23mm inlet diameter

• Active intake noise reduction

• Designed to help meet kart circuit noise limits

• Suitable for OK, OKJ and other 23mm intake setups

• Lightweight and compact design

• Durable red and black finish

• Quick and easy installation

A reliable intake noise control solution for competitive karting environments.