Honda's incredible six-banger Valkyrie remains unchanged and totally unrepentent. The Gold Wing-derived engine--all six cylinders and 1500ccs of it--remains strong as an ox. Better yet, you can make it all the more potent with one of Cobra's precision-engineered exhaust systems. (Due to the stock system's construction, we do not offer separate slip-on mufflers.) All Cobra systems are designed for effortless installation.