I have an '08 Silverado crew cab 2 wheel dr.
I have installed a Airaid cold air along with the Power aid throttle body spacer and Gibson performance exhaust. The problem is that although its pretty quick after 30 its a real dog to get there.
Any suggestions?

 

U have 2 options..
A. 3000 stall converter
B. 6.0 engine
Other than that it will always be a dog off the line! lol

 

What about a chip or programer?

 

You purchased a CREW CAB with 4.8? Why on earth would you do that?

4.8 has no torque. The smallest engine they should offer in a CC is a 5.3.

Gears will help. 4.30's IMO. Stall Converter 2800-3200 Circle D is on sale for about $380 right now. Definitely a custom tune. The TB spacer is only helping the truck whistle, that's about it.

 

the thing i like most about my 4.8 is i can still beat 5.4 v8 fords

 

Get rid of the TB spacer, unless you just love the sounds or have intentions of spraying. A custom tune would definitely wake the truck up a bit, and I would plan on some gears down the line. What gears did your truck come with?

 

Get rid of the CHIP programmer, and get the ECM programmed properly. There are plenty of tuners her on the site.

 

Don't feel too bad my friend has a lifted, 4x4 CC with 36'' tires, 3.42 gears and a 4.8L lol. He actually un plugs the front diff actuator and puts it in 4L to do burnouts. Like said above, converter, and gears would be the cheepest. Next step would be forced induction, or a 6.0~6.2L swap.

 

I can too

BUUTTTT 4.8s aren't just dogs off the line, they are dogs ANYWHERE

 

Unless you put a turbo. lol