sooo....a gs-r block will allow me to have a poor mans itr...this interests me.....at any rate, my lil 2 cents...y friend just swapped out his b16a2 to get him a jdm b16 and its quick...so far i have no complaints with my b16a2 and i drove his si and i could feel the lil differnce but not much...so i would say go ahead and get it, hook ya car up tha way you like it