Needs opinions

Im in the market for a ski. My dad has always owned Yamaha motorcycles and has had little trouble with them over the years. I was wondering if there skis were the same. I have done so looking around and found a couple GP1300r for sell. Whats everyones opinion on them. Also Im a gear head and if it can go faster i will make it faster so how is the aftermarket supply for Yamahas? Your opinions will be appreciated. Thanks