2-SP Cyl Head incl ins fits for SX125 23-.TC125 23(std)

• Comes with 1 O-ring
• 2-SP head insert is a high quality combustion chamber for the 85, 125 and 150cc KTM/Husqvarna/GasGas 2 strokes.
• Carefully designed and tested on our in house dyno and on the track.
• Designed to achieve more mid and top end power without loosing bottom end.
• Made to fit the oem cylinderhead with high precision.
• Follow the instructions that comes with the cylinderhead insert to get the best out of your engine.

Are you looking for some extra power then this will help you achieve your goals.