I was wondering, what would a ext-cab short bed 2wd silv or sierra run with these mods? Might consider on getting a 2011 or 2012.

Cold air
4:10s
long tubes
underdrive pulleys
tune
Also what size rim will fit on the back so I could run drag radials? 15s or 16s?

 

Year model, engine, and tranny?

 

99-06 Maybe 14.7

07+ 14.4

 

11 or 12 model year with the six speed auto.

 

What do a stock 11 sierra ext cab 5.3 run in the quarter? E.T and Mph?

 

You'd be a bit faster with the 6.2, but I'd give you about what Dime put in that last post. Don't know where you're located, but it might be a hair faster.

If you've got a Tundra, you'd have a much better platform to build on with a new GM.

 

the 2011 silverado i rented last year had the 5.3 6spd and it ran 15.721 @ 88mph it was a crew cab and im sure an ext cab would be around 15.5s or so

 

CC05; you might want to search Magics Tundra on youtube. @ Magic do you plans on having spray on it like the tundra to? Then we would be talking different 1/4's

 

friends with bolts ons down here runing low 14s....some have broken 13s and i belive redhoe who is on here ran a 13.5 with boltons 4.10s and a stall i think he had but i know those where his times

 

Don't have spray? I have boltons on it with 4:88 gears. I mean I did run 13.80s stock!!