If I'm not mistaken, you don't have to cut anything down for the 2dr on this kit.
The last time I read you need to cut about 2.5" off to make it fit. I would double check though. Also, if they haven't changed anything, an exhaust spacer will push the pipes too far back for it too work, even with the cuts made to it.
You need to cut 2 1/2" off of the down pipe after the muffler otherwise it doesn't fit into the new hanger that connects to your evap canister. Ask me how j know lol