I did not get a Z06 or viper, because I like the srt-6. And the driveline loss depends partailly on what kind of dyno is used, the guy who did my car said it was a 22% loss on his machine( and he is a professional racer). So I just went with 20%, I will post dyno results soon, the guy gave them to me on a disc and I am going to clip out some pics and post as soon as I figure out how to do so! Thanks to some of you for the support. I learn alot on this forum. #1 alot of good people #2 alot of haters