the h22a would most likely be more efficent and cost less. With a tubro you need to factor the cost of building up the the motor, put the kit on and also maintaing the tubro since the f22b1 wasn't made factroy with turbo. As sweet as turbo is, and as much as I would love to put it in my car, It wouldn't be a good idea. If you have the money, go for it and keep us updated.