i drive a 96 civic 4dr and i'm seriously contemplating a swap. i was thinking b-16 but i don't think it would be sufficient enough to compete with other tuners(or would it?) due to the car being a sedan and not a coupe. i was also thinking k20, but i'd have to take out a loan . i'm pretty sure upgrading a d-series is a waste of time so help me out. thanks in advance