TEC DUELLER 2-2 Big Bore Exhaust System – Street Twin 900, Street Cup 900, T100, T120

Absolutely fantastic exhaust and some of the best customer service I’ve ever received! First things first, absolute love this exhaust system, it sounds incredible on the bike and really frees it up. I ran into a number of issues when installing the exhaust, the first being a faulty gasket, I’d like to say a big thank you to Matt who shipped me a new one at no extra cost after seeing the image of the initial gasket as well as providing some helpful advice from the parts team on how to fit it without further problems. I also managed to loose the C Clip on a ride when testing the bike and again I was sent the replacement part by the team with a quick turnaround. Fantastic service and would 100% recommend their products!

Hi, Just finished removing the standard cat and exhaust. Fitted and tested the new exhaust and what a difference. So much more responsive on the throttle and revs so much better. Genuine great performance upgrade.

Hello good people at TEC Finally i got my exhaust system fitted on my Bonneville T120 after the small hickup with the frontpipes. Both stripping of the original pipes and fitting the new ones was pretty easy work. And a big shoutout to my local Triumph dealer here in Finland for providing all torque specs for motor mounts and frame rail. And all the other details for the Dueller system was provided with the kit. How now been fiddeling a bit with the baffles and I really like the sound of the quieter baffles(the more neighbour friendly) provided in the kit. Besides the loss of weight comparing to the original exhaust, the bike has much faster response on the throttle. And you can really feel the change in acceleration. And my goodness when you let the bike really stretch its legs and get the revs a bit over 5000 rpm. The sound of the roar gives me goosebumps... Nothing compares to the twin roar... So many tghanks to ypu all and i look forvard to do business with you in the future,

I had fitted the slip-on mufflers previously and I been reviewing the TEC Dueller 2-2 Big Bore since it is available but only managed to purchased and finally installed it on last week when I found a reliable local mechanic in my country. Thank God that I did't do-it-myself due to my ST is Euro5 spec which the cat MUST be removed and you definitely need an EXTRA hands and PROPER tools to get the job done. Fitting the pipes was easy but PLEASE read the instructions clearly prior to installation work, alternatively watching Youtube is good enough if you are a lazy reader. Overal I am very please with the pipes installed, my ST is lighter now and (feel) more power, really roaring all the way if I rev the engine. Highly recommended to those wish to change the pipes for the sound and performance.

What a difference from the standard set up. I've got a 2022 euro 5 T120 and getting the cat out was a nightmare but installing the Tec exhaust was a doddle. So much better than the stock exhaust and looks great to.

I haven’t as yet fitted the system as I sent it off to get ceramic coated

Looks nice and sounds good! Would be nice with black version!!!

Bonjour, pots montés sur ma T120 de 2016 avec la chicane 10 trous. Fabrication très sérieuse et montage assez simple avec quelques bases de mécanique. A l'utilisation c'est GENIAL. Bruit tout à fait contrôlé et à faible allure c'est quasi le même niveau que l'origine. A l'accélération ça rugit rauque mais à un niveau encore une fois très contrôlé. On sent que le moteur respire et il prend ses tours beaucoup plus facilement, Génial. Monté avec un filtre à air DNA, un Booster plug, et j'ai shunté les sondes lambda. Le résultat est fantastique ! Ce n'est plus la même moto...Merci à Matt

Excellent exhaust system for my T120. With the choice of 3 baffles it really enhances the sound of the bike. I removed the Cat Converter and added the Tec Bike engine bash plate which was really well made. The fitting of the new pipes was straight forward with easy to follow instructions. Everything was well made and excellent value. Fully recommend these to anyone thinking of a change of pipes.

I bought these after reading various reviews. Well I am truly not disappointed they look great and sound brilliant especially when opened up quiet at low running around town. open it up and the lion roars. All the weld joints are neat and fit well together a bit of a fiddily fit but no need to rush .my bike has 14k on clock it idled unevenly and just felt choked up and vibrated hence I went for a full decat setup. What a difference it has made, bike idles smoothly and revs free and the vibrations are gone.there are more expensive setups out there but this is truly value for money.these were fit last weekend 11/12/21 so is a very upto date review my early Christmas present for myself.

Great service and very happy with exhaust. Good instructions for easy fit.

Fast delivery 😁👍good price

Very pleased with my purchase sounds good looks good lovely finish my bike runs cooler thank you Tec bike parts.

Wasn't sure which to buy for my Street twin Tec 2into1 or 2into2 spoke to Tec via email very helpful I think both look so much better than stock personally apart from looking better I'm old school and need to hear the sound of my bike decided 2into2 was the way to go look better sound better followed the fitting instructions tuck my time and in all honesty I'm really pleased with the result I've now got a great bike that sounds as it should great

Fast shipping and perfect package. The exhausts are extraordinary for the price, the possibility of changing the sound, as well as the equipment for the center stand are a real + and all for the same price. The sound is really superb, very round, very fat ; better handling of the bike and a real gain in power and comfort when accelerating. Tec has nothing to envy of its much more expensive competitors. Regarding the shock absorbers, they are really more comfortable than the original ones, you can clearly feel the difference. Perfect communication and customer service. Finally, at the time of my purchase, Tec is the only one able to offer compatible products for my Bonneville T120 2022 : bravo !!! See you soon for new purchases :)

Fantastic exhaust system, sounds really nice and bike feels more responsive, huge weight saving with the cat removed.

Fantastic new look to my 2021 T120 Great sound with the choice of baffles and more responsive

Awesome exhaust system, makes the bike sound like a proper bike, easy to install, more responsive on the throttle. Well worth the price.

Arrived 2 days after i purchased them, easy and simple to fit on the bike. Removing the cat was a pain but so worth it to have these exhausts on the bike. Sounds like a proper bike now and is alot more responsive on the throttle. Amazing quailty, excellent details on the welds and the heat shields finish it off nicely.