hi I just bought this great 09 cts and I am in love after having 02, 10 second corvette, 2, 06 vipers which I hated and a great 06 z06, great car, sold all of them ended up with 01 jeep gr ch limited with 4.7 engine that heavy jeep moved and now 09 cts sfi dohc 24 valve black beauty will post pics when I finish wheels and stuff, was wondering if anyone added nitrous as im a nitrous fan ,had direct injection on 02 vtte, nitrous and propane on viper and now I think this beauty can handle a 150 wet shot w/tune, I live close to vette doctors and probably have them tune ahd install. any comments thank in advance.:yup::yup::yup: