I have a 2005 supercrew 4x4 5.4L. K&N,Gotts,Magnaflow,and sct tuner. I am running the 93 tune until my cutom tune comes in. I want to see what it will do in the 1/4 mile. My brother is bringing up his 2010 silverado with the 5.3 that is 100% stock. Who is goin to be faster? Any helpful tips? I do have 24 inch rims on it but I am putting the facttory 18's back on for the race.

 

So my best run was 16.6 I thought it would do a little better than that. My brothers bone stock silverado did 16.2. I it's time to order LT headers and get a custom tune. Then maybe I can break into the high 15s