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
i am sure we dun need to answer the question in terms of performance, the legendary history of evo and etc. wat i really want to voice out as a reason for owning evo is the great MLOC.