If i'm not mistaken there's allen key screw at the back holding the silencer... Loosen the screw and pull out the silencer....
Now u can insert the fiber inside.... Remember to use white colour fibre, not the yellow one. The yellow one will burn
at high temperature....

Nanti sekejap je kena tukar balik.
150kmh.... Dah full throttle ke? Belum kan.... hmm....
Kalau betul2 nak buat sedap jalan. Spec ni la paling best:
Fzi 57mm Block
Full Fiber Engine Bearing (SKF/FAG)
Crankshaft Bearing (NTN 6305)
Faito 3.5mm Crankshaft Jack
6 Spring Clutch Housing (Std pakai 4 je, ni pakai 6)
19-22 Big Valve Head Set (Head banyak kena modi)
Yamaha Lagenda CDI (Better than most aftermarket CDIs)
Honda Wave 125 Clutch Plate Set
Custom Made Cam (rahsiaaaaa.... dah pakai baru bleh rasaaaaa)
X1R/Uma Racing Intake Pipe
Uma 28mm/TZM/Kip Carburator.
Kalau buat mcmni mmg tahan..... Block ori... Jackrod x pakai pin....
Insyaallah tahan... Tp bajet lebih sikit... a bit costly but you'll get 180km/h easily.
Exhaust... depends on you.... you beli i pasang. atau i beli i pasang? lol
To those who wants to mod this way.... with secret recipe inside..... let me know.... hehe....

bro..