There you go, you can use either side of the liner depending on the look you're trying to get and you can use 3M tape as in the link, glue, nails and/or combination of those.

DIY The Home Depot Lip - Club RSX Message Board

Or you can go MrMiata's route and get a lip for the rear of a civic type-ARGHGHGH lol although I don't think anybody has stuck that on their SRT yet. I'd be careful going to car meets, them Honda haters will ****** your lip and stick it on their civic's bumpeRRRRRRR