Mud Flap Help

[northwestF350]

I just recently moved to Idaho and got pulled over by the cops the other day stating that my texas truck is too awesome and is therfore illegal in their state. .
So I need some mud flaps.
They need to be at least 15in wide and probably over 20 in long. The cheaper the better also.
Any help would be greatly appreciated.
Thanks guys

[zROCK]

go to your local big rig shop. i would probably make them removable also so you can take them off when you want to go play in the mud

[95-SimpsonOBS]

i bought mine from napa. they were made for a big rig and i just cut em to size. they were i believe $15 a peice and they dont look half bad. if youre going to do that and cut them to size, ddont get the mud flaps that have the napa logo on them. itll come out looking like crap