[QuaTscH94]

With those numbers I assume you have a 5.9? Don't really listen to the computer readout for mpg, it's usually full of it. I love my flowmasters on both of my trucks, glad you likes yours too :biggthump

 

[QuaTscH94]

Nope, that's the 4.7.

I need to take the mpg myself and see what I come up with.

I live in PA so it's pretty hilly around here, I guess that's why?

Must be the hills then, On my 4.7 QC on 20s I get 17mpg in the city but it's AZ so a little different geography. My R/T gets close to what you're getting