19-20 Triumph Speed Twin 1200 Arrow Pro-Racing Dual Slip-On Exhaust
Arrow Pro-Racing Slip-On Exhaust Pro-Race trumpet shaped silencers got a very good success, the need to fit such a silencer on bikes (and engines) really demanding on power and noise output drove Arrow to design and create the Pro-Racing silencer, a bigger version of Pro-Race one. The bigger rear section (increased to ø106mm) made it possible to increase the overall volume of the system, with a general benefit in terms of performance and noise levels. Design possibilities...