Ah yes the perky butt. This pertains to the cars ass as it looks "perky". It is the way the rear body fenders are molded. Someone on the FFR forum has dropped the butt down about an 1" to make it less perky looking. The modification gives the car a whole new more original look if you don't like the "PB". I really like the FFR for the hands on experience you get. The wait is about 2-4 months depending on how many orders they have at the time. The FFR has a host of options for you to choose and I like the fact it can be a big block build also. Excellent factory support and tech assistance. Overall I'm very happy with the FFR and oh yes I will build another!