The nitro harley in the IHRA was awesome. Lots of good racing, I believe that they were in the 6.2x at 22x during their final year. They were really a fan favorite, probably only behind Top Fuel and Pro Mod. Unfortuneately, in the NHRA, like Pro Mod, they are nothing but a time filling exhibition class with even less to race for. I don't know why the IHRA has not been able to come up for a sponsor to bring them back, unless they are sitting back and trying to get the class to bring in its own sponsor, like they tried with the alky funnies.