I have got an 1981 GSX1100et sitting in my shed which is ripe for restoration, I have been getting round to doing this up for about 5 years now -Well I now need a winter project. The bike is 90% original and over the years I have managed to get the bits that were not, the last problem is I cant seem to find anyone who supplies a 4-2 exhaust system. Suzuki quoted silly money for one and were not 100% sure if they could actually supply, which leaves third party suppliers. I would like to refurb this bike as close as is possible to original spec does anyone know of anyone that makes pattern exhaust systems.