There is a compnay that makes a 3.8 conversion for the Crossfire that jumps power up to 285 and 300 horse packages. They have a package also for the 3.2 that bumps that up to about 243hp. It seems they also have been making V8 Crossfires that are putting out 426 hp and have been doing it for years now. Not saying this guy has one but if he did have either one of these models it would be pie in someones face for doubting an NA could run a 13 or a 12. Do your research folks. Needswings and TVT arent the only company's out there there's company's that have been into to Crossfires in Germany since 2004. But there expensive to say the least. The V8 by the way does about 300klm about 184 mph and just so you don't think I'm full of BS V8 = http://www.supercars.net/cars/3048.html and the V6 options http://www.worldcarfans.com/7050119....sfire-roadster the company's web site http://www.startech.de/html/crossfire1.html.
Enjoy.