PDA

View Full Version : custom operation system question(help)



blackbeast ss
June 30th, 2009, 02:27 AM
im gonna be swaping to a cos so i could hook up the valet mode and in the future go with a sd tune......i read all the tutorials heres the question i have a 2006 silverado and was looking at the list of os# and they only go to 2005,is that the highest supported year?