I have a friend that has a 00 Z29R and I was wondering if his PCM would work in my 99 ? Why you ask well this weekend in Fla. we are going to have some great air and my car goes in for tunning in 2 weeks and I am only on stock tune and my friends has tunning with his. Only thing my PCM has is the revlimiter raised to 7k..... Thanks Mike H.