After a considerable amount of market research, I purchased a Scorpion Red Power exhaust for my 765RS. The build quality and sound are both superb. The buying experience was slick and easy, with excellent customer service and attention to detail. Having damaged the exhaust end can, I contacted Martin at Scorpion, who was professional and prompt in his responses to my request for a repair. The whole process from enquiry, repair and return, was a matter of days and value for money. A refreshing change in this 'automated response' market place! I would not hesitate in recommending both their product or, the company. You will be hard pressed to find another exhaust manufacturer with this level of customer service and professionalism.