Yep, buddy...that´s how I remember my 72 widow maker...never was shut down with it. I had velocity stacks and expansion chambers and double disc front brakes added and it would howlllllllll. Now as an old lady of 55 I ride my 1200R Harley at 120 mph...rather tame when comparded to the old H2....Hey buddy we had them and lived to tell the tale and ride again. Ms. Traci