TEC Big Bore Front Pipes – Speed Twin 1200 and Thruxton 1200 models


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

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

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

Can be mixed & matched with any silencers (including OE silencers) that fit stock front pipes.

Also available as a full system called the “Dueller” at a discount with our slip-on silencers!

Gaskets 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 9 reviews
Andrew Jefferies
Tec headers

Excellent product easy to fit with detailed instructions and sounds amazing

John Corner

Top quality, easy to fit. Sounds fantastic with the Vance and Hines TORS without baffle. Great service as usual from Tec

Chris Aus
Fantastic product and a perfect fit

The big bore 2 - 2 is fantastic quality and a great value product . As described It was a perfect fit and all you require is in the kit .
Loved the idea of the 2-1 but preferred the balanced look of the 2-2 exhaust. This solution provides performance as well as that classic twin muffler aesthetic.
The transformation of sound and responsiveness of the decated 2022 Triumph Speed twin, even with the stock mufflers on it (for now) , is immediately better than the stock setup.
( still waiting for some locally sourced shorty slip ons ) I’m now starting to think I should have ordered the Tech mufflers also !
Just the headers , The performance is noticeably better. Freer revving, the smoothness of throttle roll off when entering turns is appreciably improved and running cooler.
Also have to say, the sound ! most importantly the added burble to the exhaust note and a couple of extra Db is really delightful.
An awesome result for the money and the effort required.
The removal of that Ero5 catalytic 3kg “anchor” on the 2020 and later models is a serious job and requires some tooling up prior, if you want to finish the project without having a tantrum. ( watch the Tec bike video )
I’d strongly suggest you get a torque wrench ( mandatory really), and some ratchet ring spanners.
These new welded on final section of pipes from the Euro5 Cat create an extra hassle requiring the subframe to be partially removed, from the LEFT side , I went from the right side mistakenly derr ….and gave myself a way more difficult job ( see videos from Tech parts )
this new Euro5 version cat has definitely been designed by a team of ex bureaucratic engineering gibbons who purposely designed it to be as difficult as possible to remove the offending item. … it’s not rocket science , a bit tedious but the result is so worth the effort.
What a great difference in Sound , the bike has developed some real British twin character now.
I can Highly recommend TEC BIKE PARTS , great products , super value. Also fast to dispatch. Thanks for using DHL guys they’re amazing and worth the money. I received the parts from The UK to Australia in a week.
Comparatively, I’m still waiting for items I ordered before this from Victoria only 1000km away . DHL make Australia express post look like a pack of Rhesus monkeys . 5 stars for DHL also , and another good reason to use Tec bike parts .

Thanks again for the excellent products and service Tec bike parts team.

Anthony Stewart

TEC Big Bore Front Pipes - Speed Twin 1200 and Thruxton 1200 models

Tony G
Tec Big Bore

Good quality, easy fit (once the old Euro 5 cat and pipes were off!) and quick delivery.

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