Well when i got my truck i was running 18 mpg with a k&n drop in filter after i got my bigger tires, exhaust, andtb spacer i was still at 17.5 to 18mpg depending on how i drove so the exhaust and tb spacer incresed but the tires dropes the milage so it stayed the same. But now that i have the volant cold air intake and ram air scoop i went up to 19mpg driving about 75 give it a mile or two because the speedometer was off before my tune. So now i need to test with my custom tune maybe im pulling 20mpg that would be nice.

 

wouldnt it tho. oh how i wish i had my old one, i used to be able to pull 20 out of it stock, workin on getting this one up there now.