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309 Machine

CNC Ported HP500i

CNC Ported HP500i

Regular price $2,100.00 USD
Regular price Sale price $2,100.00 USD
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Current lead time: 3 weeks


What starts life as a Stihl® MS500i is transformed in 309 Machine's HP500i. 309 Machine's CNC Ported HP500i is the ultimate mix of power and lightweight. 

HP stands for High Performance, and that's what we are all about. We strive to maximize power while focusing on durability and reliability.

This is for the Power Head Only (PHO). Add a Stihl lightweight bar and chain when buying the saw and save 20% off.

Performance work includes;

  • CNC Cylinder porting
    • Exhaust Port enlargement, timing and polishing
    • Squish band cut for smaller combustion area
    • Base cut for increased compression
  • Port matching, baffle thinning and hole enlargement on muffler
  • Removal of compression release

309 Machine recommends the addition of a performance exhaust and air filter to truly unlock the saw’s potential. We offer products for both of these from Westcoast Saw.

Stihl® is a registered trademark of Stihl® Incorporated and is used only to describe their products. 

 

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Customer Reviews

Based on 16 reviews
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Mike Kutz
500i

This saw is pretty impressive! You will not be disappointed!

J
John
500i

The 309 500i performs like a race car. Chain speed is extreme. The saw has improved torque also. Leaning on it while cutting a 32" white oak log and the saw did not bog at all. The saw only has 3 tanks thru it, can't wait to see when it breaks in. Great service, very happy, ordered the 261 also.

J
Josh Lloyd
Ported 500i WOW!!

I've been running a stock 500i for several years now, its like night and day!!! The black dyed looks great!! I think I need another one at least. Oh, and the customer service is spot on too. Thanks for making such an awesome product. I will be ordering again!!

J
Jeffrey Sellars
SMOOTH BEAST

Saw is everything I wanted, 30 in. Stihl bar full house square grind, better hold on tight. Great job, after week of cutting walnuts in the midwest it's definitely a stump maker. Feels right and throttle response is amazing. Thanks

J
Justin Rutan
Bad A$$

Get one you will not be disappointed. This saw cuts like a light Sabre. I work at a tree company and it has become everyone’s favorite saw, power to spare!