I need help installing a lip kit from ABS Dynamics. It is a mugen front lip and type R rear lip. When I ordered these I was told it would be self explanatory and directions would be included(none were). When I went to test fit them it seems like the back edge on the lip is short by about an inch, maybe two, from getting over the backs of the bumpers. If it helps, My car is a '92 Civic hatch and yes the bumpers are OEM and the car has never been in a bad accident. I would really like to install these myself, rather than pay a body shop $375 to do it(not including molding it into the bumper or any paint/primer).