the type-s is what you want if youre adding just i/h/e. get the base H22 if youre going to build it because you can build it to better specs than the type-s. i think if you wanna run nitrous then i would go with the 10.6:1 CR H22. 11:1 is getting pretty high to use nitrous. 10.6:1 is also pretty high and will take good engine management to run it properly. its all about how much you wanna spend and how fast you wanna be