Stock motors suck... a swap is ALWAYS worth it in my opinion UNLESS you already have a B-series... since you're running a D series like me, go for the swap. B18c1 is what i reccomend for most power and easiest bolt in. I cant talk just yet though because my swap doesnt happen til next weekend. Also check out the b16's...

oh and to who said it.... 1000-2000, shiyat... where you get your B18C1's at?1?!?!?!?!