Measured horsepower of YZ450F?

2 replies to this topic
  • DrHP

Posted October 19, 2004 - 10:50 PM


Anybody have dyno data from a stock YZ450F? What pipe seems to the best for an 05? Looks like the factory has a step header pipe, just like my drag stuff from 15 years ago!
Thanks for the input, Dennis Baccus

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  • gonzo

Posted October 20, 2004 - 02:09 AM


The most brute force is the Jardine. The best all around and smooth pipe is the Factory 4.

  • Flattracker60

Posted October 20, 2004 - 06:37 AM


My "off the showroom floor" 04 YZ450 made 45.5 RWHP. Oh yea, my bike also has a Jardine pipe :cry:

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