be an optimist... full exhaust, intake, tune on a civic is like 8whp so it could be way worse for spending the money haha
realistically though 40-50whp on bolt ons for an NA car is not bad either way. Anything further is gonna require forcing the air in which if i recall the compression being 11:1 dispite the beefier build of the VQ37 you're gonna be limited on boost with the stock motor... so then you're looking into a motor build, downtime, Dollazzz, not a good combination for a DD. Not saying turbo is bad because turbo is the ultimate replacement for displacement but these cars seemd like they were designed to stay NA.
More importantly has anyone ran E85 through these motors with unretarted timing?