Whats up; new owner of a 2005 Silverado Performance edition 6.0 2wd. Less than 1000 miles on the truck so far, and I have just ordered the STS turbo kit with the GT67 turbo upgrade. I'm going to try and get base et's this week so I have a before and after comparison... cant wait to see what this does for my truck..
later
05 Silverado VHO 2wd xcab. 6.0L (stock), STS intercooled turbo 9psi. TiAl blowoff 11psi. Pro Torque 2800 stall converter and billet 1-2 shift servo. dyno 4/23/06 430hp/517 TQ @ wheels. 12.95 @ 104.5 8/11/06.