modifying my 250

[ryanrocksfender]

can you guys give me some opionions and sights on parts i can get more performance out of my atv ist a honda trx 250 ex

[Fox17]

sell it and get a 450R. j/k. exhaust, tires, jet kit, air filter, computer, lose some unnecessary parts for weight, remove the air box lid, that kinda stuff.

[klutchbuster400]

If you can, get some 450r stock shocks, that could help, might make your bike a but higher though.
then get yourself a good handlebar, and stabilizer, You want to make sure you can handle the power gain.
After you get handling down, work on speed mods. A pipe seems to be a popular buy, but sprockets are awesome too, and really cheap. wait a sec, is the 250 ex shaft drive?

[KD 428]

is the 250 ex shaft drive?

Yes it is shaft drive.