# 400EX update

**URL:** <https://forums.speedlife.net/t/400ex-update/187175>\
**Category:** PittSpeed Automotive\
**Created:** [January 2, 2007, 11:38pm UTC](https://forums.speedlife.net/t/400ex-update/187175 "2007-01-02T23:38:18Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![SP71Supra](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sp71supra/32/5955_2.png) [@SP71Supra](https://forums.speedlife.net/u/SP71Supra)\
**Post date:** [January 9, 2007, 6:13am UTC](https://forums.speedlife.net/t/400ex-update/187175/6 "2007-01-09T06:13:58Z")

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> [@My Weekend Pics \*Maxton Monster Mile\* 56k Warning](https://forums.speedlife.net/t/my-weekend-pics-maxton-monster-mile-56k-warning/26957/22):
>
> the main problem now though, is that youll have a hard time getting it to run with stocks 450s w/o getting radical.

I have to agree with him… and there really is never too much power, just use your thumb wisely. I have rode YFZ-450’s in the woods all day long and never really complained about the power. If you do woods riding, in my opnion the new Raptop 700 fuel injected is proably the sickest quad out. I rode a 400 with a big bore kit, it definatly helps, but nothing like these new quads. Good luck w/ your project.

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