the type r is a great motor, it sets you off running in one direction, and that is NA. Now the downside is, if you plan on boosting, you gotta run back the other way and take care of some things before you can. Now the GSR motor will set you squarly at the cross roads. From a stock GSR you can go boost easily, or can build up or swap out the head for some NA action. The nicer thing is, your spending 3k vs the rediclous 4-5k type r swaps go for