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Yasuni 4 Exhaust KTM Duke 125cc

Yasuni Item no.: YAS1100

Yasuni 4 Exhaust KTM Duke 125cc


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Data Sheet
Suitable for (1)


Yasuni is getting into the maxi scooter market, and their exhaust systems are convincing as ever. The Yasuni 4 Exhaust for KTM Duke 125cc is an excellent exhaust system for 4-stroke maxi scooters.It is street-legal (Euro 3 standard).

The Yasuni 4 is the perfect combination of impressive performance, classy design and ear-pleasing sound. Maxi scooter riders who are looking for a high-end replacement for their stock exhaust are well taken care of with this piece, with a 10% increase in power to boot.

It is really easy to mount and features several advantages over the original exhaust. It weighs 40% less which makes for improved agility. The widening diameter of the steel header pipe results in improved torque and power output (+ 10%). The header pipe is made of stainless steel and the aluminium silencer sports a classy matte finish with black end cap and heat shield with Yasuni logo.

  • header: stainless steel AISI-304
  • power: 13.37 hp at 9,675 rpm
  • weight: 3.85 kg
  • colour: titanium matte
  • homologation: Euro 3, E9, E 5

Data Sheet

Name Yasuni 4 Exhaust KTM Duke 125cc
Item No. YAS1100
Brand Yasuni
Homologation No
Product Line Sport

Your product goes with the following manufacturers and their models:


Duke 125cc

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