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  #1  
Old 02-16-2004, 06:12 PM
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Default How much horse power does a stock 300ex have???

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Old 02-16-2004, 06:16 PM
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Default How much horse power does a stock 300ex have???

maybe 18
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Old 02-16-2004, 07:30 PM
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Default How much horse power does a stock 300ex have???

i had a trx250x that had 16...........i dont know if that helps but they are only like 30 cc's in difference i think and i could hang right beside my friend tommy on his 300ex. both had the same dg pipes
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Old 02-16-2004, 09:39 PM
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Default How much horse power does a stock 300ex have???

ok thanks from what i have heard they have around 17 to 18 but i dont know if its true though.
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Old 02-16-2004, 09:46 PM
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Default How much horse power does a stock 300ex have???

no its between 16-18 rwhp you might get a little more hp to the crank but its about 16-18 to the rear wheels
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Old 02-16-2004, 09:47 PM
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Default How much horse power does a stock 300ex have???

ok thanks everyone now how much do yall think it will have if u put a white bros. e series slip on on it? and how much would it have if i put a big gun full system on it? thanks
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Old 02-16-2004, 10:29 PM
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Default How much horse power does a stock 300ex have???

Quote:
Originally posted by: atvguy217
ok thanks everyone now how much do yall think it will have if u put a white bros. e series slip on on it? and how much would it have if i put a big gun full system on it? thanks
That would add about 0.5-1 hp....
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Old 02-16-2004, 10:30 PM
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Default How much horse power does a stock 300ex have???

uhh so which one r u talking about?
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Old 02-17-2004, 09:45 AM
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Default How much horse power does a stock 300ex have???

In general pipes are pipes. Some are tuned to different RPM's, but they all give you about the same results.

If you were to put on a pro-flow or K&N filter, with a full exhaust, and jet the carb properly, I think regardless of which exhast you use, you can expect at least 5% gain, up to about 10% gain. Since you are starting with 18 hp, that only gives you about 1.5 hp... Now if you were to do all of the above, *and* put in a different cam, to take advantage of the better breathing system, you might see 20%, which would put you in the mid 20's.
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Old 02-17-2004, 09:51 AM
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Default How much horse power does a stock 300ex have???

I had been informed in another post a while back that the 250X actually had more HP than the 300EX ?? The Warrior is supposedly 18hp stock, and has more power than the 300EX.
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Old 02-17-2004, 09:51 AM
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2004, 300, 300ex, add, alot, dg, exhaust, gain, honda, horse, horsepower, hp, pipes, power, stock



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