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View Full Version : power upgrades???


kfx400rider03
05-22-2008, 07:07 PM
are there any cheap power up grade for the kfx450 like there is for the ltr??? any chip type of things?
if not what are some cheap upgrades u guys have on urs
btw this is for my buddies 08 kfx
Atving4Christ
05-24-2008, 10:50 AM
They dont have any thing like the cherry bomb. Cheapest thing I can think of is gearing. Go down in the back one or two. you will see a difference. BUt have to get the big three before seeing any real gains.

Larry
Kawi_41
05-25-2008, 11:19 PM
As stated above, changing the gearing is about the cheapest thing to do. Put a 15t on the front. Aside from that he could take off the airbox lid and take the baffle out of the exhaust. It wont do much, but it'll help a little for now. He's gonna need FULL-exhaust, FMI, and a less-restrictive airbox to make some noticeable power.
QUADROOKIE
05-25-2008, 11:25 PM
I just put a slip-on HMF and HMF optimizrand airbox lid off and I noticed a significant power increase.
kfx400rider03
05-26-2008, 07:45 PM
Originally posted by QUADROOKIE
I just put a slip-on HMF and HMF optimizrand airbox lid off and I noticed a significant power increase.

what is the HMF optmizand and how much was it with the pipe too???