Not quite sure what language this is in but this site posted up some dyno numbers. Maybe one of your guys can make some sense of it.
Tes Knalpot R9 Di Kawasaki Z125 Naik 2 hp - Motorplus Online
HASIL DYNO
Power (Hp)
Rpm Standar Upgrade
4.500 5,10 6,40
5.000 5,20 6,50
5.500 5,44 6,80
6.000 6,20 7,60
6.500 6,50 7,97
Power standar : 6,92 hp/5.600 rpm
Power upgrade : 8,19 hp/6.600 rpm
Torsi (Nm)
Rpm Standar Upgrade
4.500 8,80 9,20
5.000 8,70 8,90
5.500 8,34 8,81
6.000 7,90 9,02
6.500 7,80 8,74
Torsi standar : 8,85 Nm/5.100 rpm
Torsi upgrade: 9,24 Nm/5.400 rpm
Tes Knalpot R9 Di Kawasaki Z125 Naik 2 hp - Motorplus Online
HASIL DYNO
Power (Hp)
Rpm Standar Upgrade
4.500 5,10 6,40
5.000 5,20 6,50
5.500 5,44 6,80
6.000 6,20 7,60
6.500 6,50 7,97
Power standar : 6,92 hp/5.600 rpm
Power upgrade : 8,19 hp/6.600 rpm
Torsi (Nm)
Rpm Standar Upgrade
4.500 8,80 9,20
5.000 8,70 8,90
5.500 8,34 8,81
6.000 7,90 9,02
6.500 7,80 8,74
Torsi standar : 8,85 Nm/5.100 rpm
Torsi upgrade: 9,24 Nm/5.400 rpm