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It is worth it esp if you want to keep the bike for any period of time. The ECM in motorcycles have been extremely restricted since the beginning for HD in 1999. It is easy to make those ecms ping on a hot summer day with a stock motor.
Im shocked that Vics run as OK as they do on stock parts. But actually getting on the motor was a mess for me. stock tunes are just barley letting a motorcycle run IMO.