Welcome to Hilltop Performance Hilltop Performance is located in Amherst, near Vermillion, Huron and Sandusky Ohio. We offer service and high performance modifications to personal watercraft, ATV, snowmobiles, jet boats and dirt bikes. Hilltop Performance has a full line of aftermarket performance parts for your Sea-Doo, Ski-Doo, Honda, Yamaha, Kawasaki, Suzuki or Polaris.
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