why would i swap it out?? well in reality if you really think about it.. if you are lazy and live in cailfornia and don't wanna bar you LS in a crx then its gonna be consider illegal to have.. if you are smart and drive around the city and take the small street you be fine with a swap... but why spend all that money fixing that b18b for example.. my bolt for the motor mount bracket snap in half.. made me mad cost me 50 bucks to drill it out.. i try to do it myself but it was to deep.. then i had bad clutch problem.. a new clutch ran me 300 .. thats because i prefer using a 6puck ACT.. i spent a lot of money fixing that b18b just to hit mid 14's... why i could go singo cam with turbo.. use a heat sheild to block my turbo and drive in the city knowing the cops are to smart to find the turbo.. and i will still be able to run 14's... with the bov .. i love it.. plus d series parts are cheaper.. if i was gonna go all out.. of course b series is a great choice but daily driven.. d series will do the same job.. plus you are the underdog.. give me your thoughts..