Staintune Australia
Pipes of Perfection

TRIUMPH BONNEVILLE AMERICA / SPEEDMASTER SLASH CUT STYLE

Performance:
On the Dyno the Bonnie America model produced an extra 8.5 Horsepower gain over the standard exhaust system. That is just with the pipes and no engine modifications. There is a recommendation with the America's for an increase in main jet size to 135 with all else at standard position. Customer feedback also reports a huge gain in throttle response and of course mid range torque.

I want to know about the sound:
The Slash Cuts sound fabulous on the American and the Speedmaster models. They have been described as a note to dance to. They also bring out that distinctive, head-turning Triumph note. The Staintune Slash Cuts are ADR compliant and have the Staintune removable restrictor system.

Restrictors In: 94.5 dba @ 3650 rpm
Restrictors Out: 99 dba @ 3650 rpm

Finish:
Have a look for yourself, they look magnificent. The Slash Cut style really suits the Bonnie American and the Speedmaster and will last for the life of the bike. They come in a mirror finish that you can see yourself in and with a little Staintune Liquid Mirror Polish they will stay that way.

Part No: TR MS BON AM