Performance:
The Triumph Thunderbird on the Staintune in-house Dyno managed to achieve a Horsepower gain of 12 Hp over the standard exhaust system. That is just with the pipes and no engine modifications.
I want to know about the sound:
The Reverse Cone Mufflers sound fabulous on the Thunderbird, living up to its name. The three cylinder unique sound is really brought out with the Staintune system and the look just turns those head. The Staintune Reverse Cones are ADR compliant however they don't have the Staintune removable restrictor system.
No Restrictors: 93 dba @ 4125 rpm
The Reverse Cones get up to around 99 dba under flight.
Finish:
Have a look for yourself; they look magnificent on this classic style bike. The Reverse Cone style really suits the T'Bird 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 TB RVC