FCON-S. it may cost more but you get it all. no bcc needed and you can adjust the fuel mapping and timing. its all laptop adjustable. its just a little more than a VPC. you can instal TWO GCC's too. one for ignition and one for fuel if your HARD CORE. i dont think you would need it. its like 2-300 more than a vpc. its a plug in type too. no modifying anything. there are four settings that you set with a switch. like if you want to run 25 psi on 92 oct, 25 psi on 110 oct, 30 psi on 92 oct, and 30 psi on 110 oct. all the settings are tuned to the max on the dyno. plus its an HKS item and it looks cool.