Hi, I am new to F car ownership...aspired all of my life to own one and just got a 1997 355 GTS; Black/Tan. I searched for about 12 months and finally found what I hope to be a great car. I know opinions vary on the rear challenge grills but I am one who likes them. I talked with a dealer on purchasing one and they are talking $1,200-$1,500 installed. I found a sponsor here at Fchat that will sell one for $850. Has anyone had any experience replacing their stock rear panel with a challenge grill? Thanks for your help!