Hello guys,I drive a Suzuki GSX 1100 F ( GV 72 C ) it has open exhaust manifold, i.e. 139 HP. Now I want to replace the original exhaust system with a 4 in 1. Which possibilities are there, and above all which systems fit exactly.? Do I have to replace the crackers or not.Where do you get a cheap, affordable system.? I also want to know how to fix the original mirror properly again and that is on the joint, not on the panel. t always start to shake. I would be very grateful for any answers. Sincerely: WALTER