Developed and tested on all our engines 20,000 miles of field testing Thousands of dyno hours 18+ months of development (3,000+ design hours) per belt 1200+ vehicle validation hours For schematic location 6 only. This Accessory is Designed to Fit the Following1992 Sport –, 1992 Sport GT, 1991 400 –, 1991 500 –, 1991 500 –, 1991 SKS 500 –, 1991 SP 500 –, 1991 650 –, 1991 Sport –, 1991 Sport GT, 1991 Trail –,