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On the Staintune in-house Dyno the Bonneville fitted with Reverse Cones produced an extra 8 Horsepower over the standard exhaust system. That is just with the pipes and no engine modifications. Customer feedback also reports a huge gain in throttle response and of course mid range torque.
I want to know about the sound:
The Reverse Cones sound magnificent on the Bonnie models. They have been described as a note to dance to. They also bring out that distinctive Triumph note and they are sure to turn heads and give your bike a stunning focal point. The Staintune Reverse Cones are ADR compliant however Reverse Cones do not have the legendary Staintune removable restrictor system.
No Restrictors: 90.5 dba @ 3650 rpm
When under flight the Reverse Cones reach up to 98 dba
Have a look for yourself, they look magnificent. The Reverse Cones style really suits the Bonnie 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 RC