does a 33 bye 12.5 20 fit a stock f350?
 

I got my truck used with some nice mags the tires are toyo 33/12.5/20's I cannot see any raise blocks etc its a srw 2007 f350. Just curious if its stock ride.

Yes they fit stock just fine.

did you notice anything with the mbrp turbo back? What kind of egr delete and do you have a check engine lite?

Yeah lower EGT's and excellent sound. I made my own EGR delete, check out the 6.0 forum, I did a write-up on it. No I dont have a check engine lite because I have a custom tune with all the EGR parameters turned off, but if you dont get a custom tune yes you wil have a CEL.

do you know what stock tire tallness is is it also 33?

a 265-70-17 (stock size for trucks equipped with 17's) is 31.6'' tall trucks with other wheel sizes still should hae about the same height tire. 33'' will clear just fine, some guys on here run 35's on stock trucks, howeer I think it looks silly.

oh i am wondering he he redid the speedo as I know it will be off a fair amount if he didnt now... can a ford dealership redo it?

Who is he? it wont be off much