I have been to Olson’s Upholstery shop twice. Once for a YFZ-450 seat repair and just recently for a seat modification on my Ski Doo Renegade snowmobile. They added 4 inches of foam to my seat which makes it very comfortable for a 6″5″ rider. The customer service I receive has always been outstanding and I would highly recommend this business for any automotive/jet-ski/snowmobile/ATV needs.