We make this high performance racing quality radiator for all Vipers. This is the coolest radiator available for a Viper. Click Here And Take A Look; http://alansperformance.com/alpe3pacura.html Alan Here is a Twin Turbo 1,500RWHP customers quote. I'm one of theTT's! ringing endorsement from JD for the radiator! It cools as it rocks! JD This customer has a Roe SC; Knight Viper I'll second that; on a Roe car....Cool as a cucumber, I love it!