This is a daily question I get, "should I go boosted or stay all motor"? We all want to make the right decisions on our build so that our money doesn't go to waste, so planning what your goals and budget are is the first step. All motor builds are not by any means "cheaper". HP per $ will be more costly than your boosted build. But sometimes people want to be different, so they choose the all motor route.
If you know you are wanting to gain over 200HP you know that Boosted is the way to go unless you want to invest in a nasty all motor build. What I mean by that is, compression, E85/race fuel, properly spec'd converter and a strong motor. Your all motor build will essentially be working harder than a boosted application. So stronger and pricer parts are needed. Now if you are just interested in the "Chop" sound of a NA build, then your expectations are lower, and that can be achieved within a reasonable budget.
The catch with these builds, is someone will always want "more power". By building a boosted application, its is more affordable to do so. This ranges with what year your car is being are parts avail for your fuel system, and converter setup. Even transmissions with these newer vehicles are limited. So bottom line is plan your build with your car based on what power levels you are wanting and knowing that possibly in the future you will want more, and what is the most affordable option to do so.
Boosted builds can be done is stages much easier than NA builds. So planning is key. Be sure to get with me before you start your build so we can you started on the correct route.