I have been looking on the net to find the cheapest HMF pipe for my 400AT and came across the specs on it, concerning added horsepower.
I was just wondering if anyone new the horsepower ratios of the stock 400. They are not shown on the specs on Honda.com.

 

probably like 25hp

 

The rancher 350 makes around 20hp and the 400AT makes 10% more horsepower then the 350. That would mean it has around 22hp. The 400AT does make 20% more torque than the 350. However, I don't know how much torque the smaller rancher has.

 

Thank you both for the info. I am basically trying to get a feel for what the HMF pipe and a K&N filter will do for the atv spec wise.

 

Stock hp is about 13.5 If you do the pipe , jet and filter, it may get to 16.
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