Its about effiency and gas mileage. They can have a 350hp TT car with a 8.5:1 static C/R getting 30mpg as opposed to a 350hp N/A motor that has a static C/R of 10.75:1 getting 20mpg. There will be ALOT left on the table, and with a tune and exhaust I have no doubt the cars will make over 400hp.