Kit for the 2004-2006 GTO using the factory washer tank as the methanol tank. Select MAF for TVS, Whipple, PD type blower. Select 2 bar MAP for centrifugal blower like Procharger. We have a trunk version available using a 2 gallon Procell. As well as an underhood 1.5 gallon Procell version to be located in place of the battery.