Wow those are great numbers for not many mods. Good track times too. low 13's in a truck is moving. You would probably suprise alot of people on the street.

 

would this be the l99 engine?

 

damn those are some really good numbers for a header tune only truck... very impressed

 

L99 engine is a LS3 which is in the camaros.
its a L92 engine

 

Man I knew I should have looked harder for a 6.2. Makes me sick but I gotta question for you guys concerning fuel mileage. I just bought a 2010 2wd cc with the 5.3 and driving it very very easy and only its only showing im getting 14mpg. Will a tune help me any plus its got the factory 20's too?

 

super nice

 

Nice numbers

 

Thats an understatement! Never would have thought the 6.2 could turn in those mileage numbers.

 

wow.......makes me sick to see that and think about how much money i just dumped into my truck to get 60 less rwhp than you and a ton less gas mileage

 

You should test it on flat or maybe even inclined ground for us to compare real world driving! Not much flat or downhill only roads in Bama!! With a little exhaust wrk and a tune I have to draft and drive like PawPaw to achieve 20 and thats doing alot of coasting in some small rolling hills during all of this!! Heck Ive even coasted off the mountain going into NC and didnt achieve more than 20 on a 250 mi trip!! How far of a trip did go on when you got 24?