What does it take to break the 14's in my silverado? I have a 2011 extended cab with a 5.3 2wd, it has a diablow sport tune so far. Oh yeah have 3.08 gears in the back.


Will 3.73 and empty cats get me pretty close?

 

i start with custom tune 3.73 and bolts should but im not a 100%

 

A turbo would get you what you want! Or a supercharger!

 

Intake long tube headers exhaust 373 tune that 6 speed tranny... Should be more than enough

 

a tune
CAI
Headers *with or without cats*
dont hate the gears just yet.

 

So you feel gears should be the last thing? I just have heard so many good things about putting 3.73's with the 6speed autos.