i want to put a cold air intake on my engine but i don't know if a regular civic intake will accomodate the gsr intake manifold. which intake have you guys used. also, i have leather gsr seats for the rear of my hatch, the top part of the seat fits good, but the bottom part of the seat is not deep enough. there is a big gap between the top and bottom of the seat. i have seen teg seats in civic hatches before, so how did you guys get them to fit the right way?