I came from the exhaust manufacturing business in my previous job. When I discovered GNX 239 needed a new exhaust I started to search for a new or NOS exhaust. There are some NOS exhausts out there, but I have found them to be very expensive! With my connections in the "QUALITY" exhaust aftermarket I have secured a very reputable exhaust manufacture to duplicate the original GNX exhaust system. GNX 239 will be used for the prototype. "GNX 239's exhaust is original and complete. My question to the GNX owner's is simple...... Who would be interested in a "QUALITY" replacement exhaust for there GNX? Please let me know. If I have enough orders I may be able to get more made at a reasonable price.