We are a pioneering and historic Spanish brand of products and accessories for complete motorbike tuning.

Our team is made up of industrial engineers, technicians, prototypists, experienced welders and a young sales team, all of whom feel passionate about the motoring world. We experience bikes not just as professionals but as users too.


We provide motorcycle and scooter users exclusive integrated solutions to improve their driving experience in 2T and 4T. We are leaders in the 2T market with products for more than 40 models of over 20 brands. We export worldwide, with an international turnover of over 80%.

Our technological advancement has allowed us to move faster, offering pioneering solutions from our R&D + innovation Department that have empowered us to win many world championships.


Our vision of the future is based not just on technological progress, but also on our four company values that are the axis of our growth:



Speed, adrenaline, adventure. We have turned our passion into our profession and that commitment takes us further.



The quality of the materials and the attention to every process, allow us to attain more power, better sound and the latest in design.



Teamwork and collaboration with the client. We know that without your trust our projects would be futile.



Research, development and innovation. There are no shortcuts to winning championships, being market leaders and launching pioneering products.

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It all started with our passion for motorcycles. We wanted to share it, and offer other users pioneering products and solutions that would improve the performance of their bikes and their driving experience. Thus, in 1977, we began a journey that ultimately led us to succeed in a number of championships and in the global market.


We found Kit Yasuni thanks to the specialist knowledge we forged in Montesa's racing department and the work carried out with the legendary director of Derbi's racing department, Paco Tombas.


We are the first brand to launch an innovative model: the "scarf" style exhaust


We incorporate the first test bench. We fully computerize the research department. We automate the welding line.

We enter the racing world and attain our first GP victory. We move into our new premises, going from 700 m2 to 3,000 m2.

We launch new models, including handmade ones. We expand into the European market.

We obtain our first EC type-approval from the Spanish Ministry of Industry.

We win the 50 cc Catalan Championship and 80 cc Scooter Rally



We win the 125 cc European Championship.
We win the 125 cc Spanish Championship.
We win the 80 cc Catalan Scooter Championship
We win the 50 cc Open RACC Championship
We win the 80 cc Andalusian Scooter Championship


Emilio Alzamora of Yasuni is crowned 125 cc World Champion
We win the 250 cc Spanish Championship.
We win the 70 cc Catalan Scooter Championship
We win the 70 cc Spanish Scooter Championship.
We win the 50 cc Open RACC Championship
We win the 125cc Catalan Championship



We win the 70 cc Andalusian Scooter Championship


Daijiro Katoh of Yasuni is crowned 250 cc World Champion, after setting a record of 11 victories out of 16 races.
We win the 70 cc Andalusian Scooter Championship


We win the 250 cc European Championship
We win the 70 cc Andalusian Scooter Championship.


Andrea Dovizioso of Yasuni is crowned 125 cc World Champion.
Sebastián Porto of Yasuni is crowned World runner-up.


We win the 125cc Spanish Championship


Álvaro Bautista of Yasuni is crowned 125cc World Championship


We incorporate laser cutting (LCS) and several robotic welding lines (EWS). Currently, 95% of welding processes are robotized. We obtain the approval of the exhaust for four-stroke engines.

We incorporate folding, embossing, cutting and finishing machines for stainless steel and titanium.

Gabor Talmacsi of Yasuni becomes World Champion, after an intense duel with Héctor Faubel.



Álvaro Bautista of Yasuni becomes 125 cc World Runner-up. Julián Simón of Yasuni is crowned 125 cc World Champion.


Julián Simón of Yasuni is crowned 125 cc World Champion.


We launch new models of approved exhausts for 4T scooters and start the second evolution of Euro3 exhausts for 125/300 cc 4T scooters.

We present the R4 Big Bore exhaust for top-level competition.

We expand the Yasuni 4T exhaust range for the main maxiscooters in the market.

We introduce the new Yasuni 4T double exhaust for the KTM Duke 125 cc.


Álex Rins wins the Spanish Championship in the 125 cc category.
Motos Triangulo win the Andalusia Championship.
K. Moreno, champion of Catalonia.


Motos Triangulo win the Spanish Cup.


We develop Yasuni exhausts for high level competition. We launch the project ¨Electronics applied to the bike¨.

Joan Mir of Yasuni is crowned Champion of Aragon.


We present the new Yasuni exhaust for Yamaha TMax 530 cc.

We expand our 4T range and include the Black Edition finish with carbon cover.

We sponsor the Leopard team in Moto2 class, with its own exhaust.


We launch the 2T 50 cc variators range.

We present the new Silent 2T for Road & Cross.

YASUNI celebrates 40 years of history.


We launch the new Maxi Scooter Euro4 range 500 cc to 800 cc.

We sponsor racers Aaron Canet and Alonso Lopez of Estrella Galicia and Monlau Repsol.


Radical and innovative change in YASUNI's image and brand. Complete rebranding, new corporate website and creation of profiles on social media, to connect and inform our public and followers about our news and current affairs.

Sponsors of the Leopard Racing Junior Team.

Also of the Motos Gaspar team for the 24H of Catalunya Motorcycling.

Main sponsor of the Drag Racing Event in Bordeaux.


We entered to the motorbike accessories market with our Pro Race brand, an exclusive range of different components for 2Stroke bikes.

Sponsors of the Petronas Sprinta Racing team in Moto2 and Moto3.

Also from the Leopard Racing Junior Team.


Firstly, we launched a new homologated exhaust, but with racing performance for scooters, called 'Carrera 10'.

In the middle of the year we revolutionized the variator market by launching our 'Axial Transmission' for the 2 Stroke (50-90cc) and 4 Stroke (125-650cc) worlds.

Finally, we entered at the Naked motorbike market with a new range of YASUNI exhausts.

We also sponsored the American Racing Team in Moto2 and the Snipers Team in Moto3.

We were also the main sponsor of the 2T Racing Cup.

First presence in the Rally and Offroad world sponsoring and offering an exhaust prototype to Joan Pedrero.



We are leaders in the national and international market, both for urban and competition bikes, because we improve each product to deliver the best overall driving experience. And to do that, we are firmly and indispensably committed to technology.

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Every year we invest over 10% of our turnover in R&D, industrial technology and electronic and computer development, so that both our 2T and 4T users can enjoy new and unique experiences thanks to innovative solutions such as:

Micro plasma welding.

A much finer and carefully elaborated welding that bestows a more racing bike look.

Laser cutting (LCS).

High precision cutting that marks the difference especially in piece edges.

Advanced techniques in exhaust design and mufflers.

CAD and CATIA drawings in 3D, reverse engineering and 3D digitalization, simulation of structural constraints with ANSI and CAE application ...