S3 EXTREME CYLINDER HEAD KTM EXC 250 17-23

S3 "Extreme" cylinder head kit for KTM EXC Carburetor/TPI 250 2T from 2017 to 2023

A kit developed for Extreme Enduro riding, where the control of power, with all the better touch and helping in power delivery with:
• Greater Traction
• Elastic and progressive motor
• More control in your piloting
• Ideal for Extreme

In addition, the S3 cylinder head provides thanks to its design:
• Temperature reduction
• Lightness as a whole
• Spectacular look

The kit Includes:

• Extreme nock 
• Cylinder head
• Set of o-rings

FOR THE ASSEMBLY ON THE 2017 MODELS IT IS NECESSARY TO PURCHASE ALSO THE CAP FOR THE SENSOR HOLE (SEE ACCESSORIES)