• Increases airflow and offers improved filtering compared to the stock air filter
• Removable foam filter media can be cleaned repeatedly

Email Tristana@browardmotorsports.com

• Increases airflow and offers improved filtering compared to the stock air filter
• Removable foam filter media can be cleaned repeatedly

Email Tristana@browardmotorsports.com

Unleash all the power your Honda GROM can handle with the Koso 170cc Big Bore kit.

Kit includes:

• Ceramic coated aluminum cylinder
• 61mm bore, 11.5:1 compression ratio forged piston/ring kit (premium fuel required)
• Includess top end gasket kit and banjo bolts

Additional parts required for proper operation; Fuel Tuner and aftermarket exhaust.  

***ECU Modification is mandatory to use this kit***

Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available.

Email Tristana@browardmotorsports.com