man i have a gsr in my hatch and ive never regreted payin the extra money for the jdm.The b18c1 usdm it not thats great i have a header and cai and i ran 13.7 at 100 even but the problem is traction. i still have my 13 inch stocks im gonna get the quaife lsd and 15 inch nitto drs then low 13s for sure...cost was 3200 dollars plus 800 for installation but plan on gettin a new clutch i got a cm clutch master stage 1 cost 350 and cost for installation was 150...