the civic weighs in about 2390 and the dx crx at 2103 maybe around 2050 without all the stuff in the back or a little less. The civic has 125HP and 106lbs-ft, and the crx 92hp and 89lbs-ft. Depending on the quality of the intake and exhaust you may have 100hp at the crank on the rex. I'de put my money on the rex. Let us know.