I remember customized my suits with this fashion tailor in Subang Jaya SS14 (at the back of Esso and BHP).
They running their business from home based studio.
Am one of their very loyal customer when come to suits. Am quit satisfied with their workmanship and service.
The pricing definitely lower then out there maybe they operate from home.
Usually mine they charged around RM1000++. Not bad huh
The best part is they customized for women too. You can bring your wife along to customize hers also.
This is their contact no for you to inquire 0126250756 (Mr Riff)
Good Luck!!