Educate yourself about these cars. The have a pretty big intercooler from the factory and a built trans (designed to handle about 370TQ) from the factory. GM had their hands in very little of what was done to these cars. McLaren Engines did a lot of it with what they were given to work with. Here is a link to an older thread that i posted a lot of information in. http://nyspeed.com/forums/showthread.php?p=797094