they cut off most of the tabs on the gt grill for a better fit and you are left with 98% of your original bumper molding. i wouldnt really call it hacking. overhang is about 1/16 maybe 1/8 of an inch at most on mine. they are completely clear in their instructions and i have heard that they are very helpful if you have any questions. it comes with the grill, lights, instructions, wiring harness, and your choice of switch. oh and i dont have any hood closure issues.