Did you know that in many jurisdictions snowmobiles must be within a certain sound level and there are hefty fines for owners whose snowmobiles exceed that sound level? Many aftermarket exhaust systems are not within the acceptable level, putting the owner at risk of a fine. Only fit OEM exhaust parts, or indeed any other parts, when servicing or repairing your 1979 Yamaha snowmobile. We carry genuine OEM parts for all 1979 Yamaha snowmobiles at deeply discounted prices.