This is from a buddy of mine.. its not mine, its his. He isnt a member here, and he's working 16+ hours a day, so I told him I'd post this on his behalf. Ill answer as many questions as I can for him.
''I have a zippy tune tuned for a 06 silverado with Long tubes high flow cats 160 * stat and a shift kit for sale for 150 and a zippy shift kit for 230 shipped. I have not installed any of it. need the cash for other things''