standard or aftermarket,
i got one sheep dog,
keepish sound for high rev,
kuuuurrrrr for low boost or low rev,
rm 150.00, use it on 2' piping,
pls pm me
Anyone knows how to fix this thing??as i heard the wrong installing of RSM will affect the engine .... my RSM was working properly all this while until my engine burst the last month ... and after i fix it back ...