I've got the gotts mod and a k&n filter, and I'm getting 18. My dad gets like 21 in his bone stock with no lift so...
Well my dad drives like an old man and conserves gas like no other, I've seen him go a week on a quarter of a tank drivin to work every day... But I drive the hell outta mine and get like 18ish depending on my mood haha so call bs if u wanna I guess
I just put in a new motor and i am only getting 12 in the city and i have been driving like a puss do to the break in period on the motor. I do feel an increase in HP having the new motor. The only mods i have are 3" BL 305/75R 16 Buckshots, and no muffler. going to be doing the Gotts mod this weekend and change the fuel filter sense i didn't do it when i installed the motor.