S3 ‘EXTREM’ Head Kit for KTM EXC250 2018-2023 TPI

Extreme Kit:

Modifies the compression for a smooth and progressive delivery of power. Improving traction and engine control especially important in technical areas.

Its design manages to lower the temperature by eliminating the typical hot spots of the original cylinder heads.

Ideal for Extreme style riding, improving the throttle feeling.

FOR 2017 CARB MODEL YOU MUST USE PLUG ST-1235 SUPPLIED EXTRA