We need to buy a GT4 RS Manthey Racing Performance Kit to meet a Porsche parts objective. None of our customers are wanting one right now so if anybody would like to have one we will offer a big discount. Retail is $53,946. One time Rennslist special price is $42,000. We will also be very generous on the install if you would like that service provided at our store in Springfield, IL Please message here on Rennslist or send me an email. geoff at isringhausen dot com if interested.