If you're on a serious budget both money-wise and time-wise, and just want a one-time, let's-end-this-ridiculous-thing-now-and-forever win over Mr. Jeep, I recommend borrowing someone's nitrous kit for a day, just a 50 shot or something small enough to push past the Jeep. Don't go crazy. You can uninstall it the same day and never have to worry about it again...
On the other hand, it'd be much wiser to just forget the whole thing and laugh as the Jeep guy gets his ass handed to him in the future by some guy who doesn't have a stock Civic DX.
ps, it's "completely"