I have to order flares because I am so tired of my truck constantly being dirty due to the oversized tires. I have 31's on it. Which should I order? do I need 3 inches of flare?

 

That would depend how far past the fender your tires stuck out. I always like the least profile I could get away with, but that's a personal preference thing.

 

I myself tend to get silly on figuring stuff out like that, if you have a little time get some cardboard and mock up some flares and see what looks good and what kind of coverage your going to get with the tires.

 

I just measured. I need 2.5 so I should just get the 3" so if I go to bigger tires down the road I will have full coverage. Now do I get warm or bush wacker.

 

I found Xenon flares. I thought it was $200 for all four. These are so expensive. What is the best price for all four?

 

I'd take a stab at making your own first, Think this guy did a pretty decent job with some stuff he just had laying around if I remember correctly.
Rogue's Build