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I understand that in the past, HKS utilized a Rotrex unit for their Supercharger systems. With the 7040 unit, this is something that HKS has developed over a period of time, however it utilizes the Traction Drive system which according to Rotrex technical documents is a patented setup. So, does Rotrex still play any role at all in the manufacture/development of the HKS supercharger unit?
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