TEC DUELLER 2-2 Big Bore Exhaust System – Speed Twin 1200 and Thruxton 1200 models


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.

The TEC marked silencers come supplied with TWO sets of baffles: ‘Big-Bore’ baffles & ‘High-Flow’ baffles. Easy to swap out to modify your sound.

Additional 10-Hole quiet baffles can be supplied if chosen in the drop-down menu.

Front pipes & Silencers also available separately, can be mixed & matched with the O.E parts – please see other listings.

Gaskets and fitting instructions included.

NOTE – On pre-2020 models, you can leave the Cat unit in place (but not connected) this allows a much quicker and easier fitting. Otherwise, the left lower frame rail needs to be loosened to allow the Cat to be removed.  We have a YouTube video showing how to remove the cat unit.

From 2021 Triumph has introduced new Euro 5 models and have started phasing in anti-tamper, welded on rear link pipes to the Cat unit on some models. If this is the case on your bike the Cat unit will have to be removed before installing the system.

THIS SYSTEM IS NOT TUV APPROVED OR E-MARKED. As this system has no catalytic converter, it cannot be marked TUV approved. Silencers are laser marked EU noise legal only.



Customer Reviews

Based on 1 review
Paul Biggs
2-2 exhaust, Thruxton R

Looks amazing, good quality. Had it fitted by professionals, but was told it was an easy fit.
Still trying to get used to the sound as it's loud, even with the quietest baffle fitted, but that might be, because it's such a jump from the vance and hines.