Was looking for a good forum with lots of info and I have found it. I just bought a 2010 GMC 5.3 and have many plans for this truck and this site says it all PERFORMANCE!!! Yeah i have been around racing all my life my Dad use to won a track and sold it to become a Division Director for NHRA. But anyways bring on the tips and tricks for these 2010's and where an how to find the great after market performance parts.