i think the motor upgrade was my best money spent

 

motor upgrade?

 

yeah....my truck is an 08 GMC Sierra....it started it's life as a 5.3/60e/3:42 combo...it now has a 6.2/60e/4:10s

 

NICE!!!

well i meant, a single upgrade

 

I just took of my cats 3 days ago... And you know I notice more power... But man this damn truck shugg gas like crazy ima looking at 10-12 miles per gallon... And of course check engine light is on has all the 02 sensors still on... But I know the tune can take care of the check engine light and hopefully I pick up some mpg...

 

you will pick up gas mileage bc the o2s are dumping fuel.


that 6.2 was a single upgrade sir....i just added a cam and had to install it so that counts as a "single upgrade" lol

 

alright alright!! haha

 

are the mods on your sig all you have? you prob just have a heavy foot bro. with all my mods and 3k verter, i still manage 13.1 MPG in the city

 

Yeah but it's only 4.8......... So what's a heavy foot lol.... I don't know maybe I do.... Well I still got the stall and shift kit and tune in progress....

 

4.8 w 3:73s an stock comverter no tune and gutted cats is like running a 4.3 in a 2500HD CCSB 4wd = crap gas mileage