468 procharged intercooled, Dan Olson oil cooler, 5lbs of boost so there is more there, but it's extremely reliable and hasn't been abused. I have to talk to JP about what's inside. The centrifugal blower is a cool setup though as you can cruise around with no boost, better gas mileage and very tame, but floor it and it comes alive! I can't wait to take someone for a test drive!