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

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 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:

Related Content


Michigan Motocross Tires by 288yz450

Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply

First Hare scramble tips by dhend8

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 replies

Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 replies

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.