Multi National and World Champion Jeff The Jammer Jacobs appeared in Havasu testing along with Chris Fischetti the five 5 zero sponsons which were specifically designed for the JS550. Jammer was so excited that he said that he will put a set of those in one of his Superstock 550. Watching Jacobs practising on his SuperJet at Body Beach made many people wondering whether he will return back in to racing.











