309 Machine HP201T CNC Ported Cylinder Kit

Wake up your STIHL MS 201 T with precision performance work from 309 Machine. Our focus is simple: maximize power and throttle response while maintaining the reliability and durability professionals expect from a work saw.

This ported cylinder kit is designed to deliver increased torque and horsepower, improved throttle response, and stronger cutting performance while retaining a brand-new OEM STIHL cylinder, piston, and components.

What’s Included

• Brand new OEM STIHL Cylinder Kit
• STIHL Part Number 1145-020-1202
• OEM cylinder
• OEM piston
• Piston rings
• Piston wrist pin
• Circlips

Base gasket must be reused or replaced. Gaskets are sold separately. We recommend using a piston ring clamp set when installing a new cylinder.

Performance Work Includes

• Base cut
• Squish band cut
• Upper transfer ports modified
• Intake port timing and texturing
• Exhaust port timing
• Exhaust porting and polishing
• All ports chamfered

Each cylinder is individually machined and finished by 309 Machine to improve airflow, compression, and overall engine performance.

Perfect for refreshing a tired saw or for anyone looking for ported performance without sending their saw out and waiting through long lead times. These cylinder kits are in stock and ready to ship.

For maximum performance, we recommend pairing this cylinder with a performance exhaust.

Fitment

• STIHL MS 201 T