TEC DUELLER 2-2 Big Bore Exhaust System

2025 PRODUCT UPDATE – Due to ever-changing specifications and regulations, we have now updated this system and it may differ slightly from the fitting video. 

In the video we state you cannot run the bike without baffles but now due to our new modifications to the silencers, you can use the system without baffles at the users discretion on Euro 4 bikes only. 

Do not use the system without baffles on Euro 5 bikes without an ECU remap.  Bike will run fine with baffles on standard map Euro 5 bikes. 

You cannot use this exhaust on Euro 5+ bikes, these were generally introduced from model year 2025 onward.  If you are unsure what Euro spec your bike is, you will find it listing on your vehicle registration document. 

Awesome sound, more responsive.

Listen to our sound-test video below!

Designed and manufactured by us in 304 stainless 45mm tube.

The Big Bore pipes make your bike more responsive whilst saving considerable weight over the stock headers.

Completely bypasses Triumph’s CAT, de-restricting airflow from the engine and releasing a deeper sound.

Supplied with Hi flow removable baffles (we no longer supply the big bore type) – Easy to remove to modify your sound!

Gaskets and fitting instructions included.