whats the consensus about loss of mog? seems im down about 15 or 20 per tank, but im not real good at runing it in 3rd around town to keep it from lugging...thinking about getting the tune to raise the shift rpm 200 or so

 

mpg to!

 

Anyone?

 

You went from a 32" diameter tire to a 33" tire. That's not a major jump.
The issue is probably that the new tires/rims are heavier than the OEM tires/rims.
A tune MAY help but I wouldn't expect too much from it.

 

3rd around town, upto 2500rpm's, only prevents premature wear on the trans and will not lower the mpg's.

 

my question is why the 275s over a 285 or 305??

 

Didnt want them stickin out to far