Its all a matter of choice. Take any b-series swap/frankenstein with bolt-ons and a tune, v.s. a k-swap with the bolt-ons and a k-pro, and there is no comparison. K-series is much more powerful. I had gsr's, ls, ls vtecs, b20 vtecs in a 2000 civic coupe wit the works, and though it was fast, my 2005 rsx-s wit 3inch exhaust and intake was as fast or faster than all my b-series swaps. Plus my coupe had no a/c, p/s. So stock 4 stok a k is better. But who got $6000 for a k-swap when half of that gets a sick b-series set-up with massive potential anyway!? Bottom line its what u want. Wanna do 1 n/a set-up thats a monster and still has honda reliabilty? invest in a k-swap. Wanna make that power witta b-series? than u gotta build. Either way its xpensive, ain't easy and it's PREFERENCE!