Sick of those exhaust Cap screws vibrating loose. I have manufactured an upgrade kit that fixes that problem. Machined hollow pins tapered on one end. High tensile bolts and anti Vibration Nord Quality stainless steel locking washers. This kit is for the DLE 55RA and DLE61. To install Simply remove exhaust, throw away the gasket, clean mating surfaces of engine exhaust face and muffler then use high temp silicon with NO gasket. Put red locktite on 5mm bolts, fit the Anti vibration locking washers NOT CHEAP SPRING WASHERS and torque up. Job done.