exhaust Yasuni Scooter 4 for Yamaha X-Max 125 YA351

Yasuni is one of the world leaders in the manufacture of high quality High End Racing Exhaust in 2-stroke range. These decades of experience has led, so far, to only one 4-stroke exhaust system, which includes a manifold made of individual parts. The use of different cones of different diameters in the manifold allow for optimum gas flow in conjunction with optimum power output The advantages at a glance:.

more engine power
40% weight reduction to original exhaust
made of AISI-304 stainless steel
reinforced polyamide cone end cover
excellent sound through special resonance chamber