I figure this is the place to ask since someone may have had to replace their rear lip. I bought the lip, had it painted and now it is sitting at home waiting for me to return to install it. My question is did the MP3 (or early MSP) lip come installed with the four big bolts in the middle through the bumper cover? I want to make sure the thing is attached well, but if I can get away without drilling holes in my bumper cover that would make me happy. Thanks.