Diablo = BLOWS,the tunes are usually lean as crap which will blow your car up , SCT is the only way to go , and the only tuner that I can recommend myself is Tim Barth at ModularPowerhouse.com ........in Alpharetta GA ......he is the best bar none in the country in my opinion .....best customer service you will find anywhere , call him and tell him what the cobras got done to it so he can get you a good tune , tell him Willie in Bedford VA told you to call him ......he might give you a discount .......they have a great forum with a bunch of helpful guys on there too......here is some reading material if you have a minute .......

http://modularpowerhouse.com/accolad...8870b7e0ae834a