I drive an 06 rsx s and i have like half of the mods you have and I am gettin in mid to low 14's. how many times have you been to the track? I ask this (and I am not flaming you at all I promise) because when i first started going to the track I was in the 17's. A lot of it is experience. I still get nervouse watching those flashing lights anticipating the green light. As the above poster mentioned... motor mounts help do wonders on fwd cars.
P.S. forgot to mention that the rsx is notorious for the 2nd gear issue. I would take it to your dealer and tell them whats happening I had the same problem and it was my syncros so they changed it out... twice so far haha. No more racing for me cuz the 2nd time wasn't free