DYNO RESULTS
STIHL 660
![](http://rdpowersaws.com/cdn/shop/files/Screenshot-20240608_195745_Gallery.jpg?v=1717891152&width=1500)
STIHL 500i DNO COVER
DYNO TESTED @ HMWF LLC.
![](http://rdpowersaws.com/cdn/shop/files/Screenshot-20240425_215013_Gallery-1.jpg?v=1715201035&width=1500)
STIHL 261C PERFORMANCE MUFFLER
THIS FACEPLATE NOW HAS LARGER PORTS SINCE THIS DYNO RUN.
DYNO TESTED @ HMWF LLC.
![](http://rdpowersaws.com/cdn/shop/files/Screenshot-20240602_134311_Gallery.jpg?v=1717893309&width=1500)
STIHL 460
THIS DYNO TEST WAS RUN AGAINST A STIHL OEM DUAL PORT FACEPLATE NOT A STOCK 460 FACEPLATE
DYNO TESTED @ HMWF LLC.