The exhaust Yasuni R is a higher version of Z. Its more large body of resonance and its larger manifold exhaust make of him a exhaust Racing for the cylinders 50cc or in 70cc like the MHR Replica, Polini Corsa and Stage6 Sport. One can compare it with Polini ForRace and the Signal Perf Nardo. It is of course approved EC.
!!! Aprouved On The Road !!!
Compatibles Models :
APRILIA : SR AIR
MBK : BOOSTER - STUNT
YAMAHA : BW'S - SLIDER - SPY