can't really remember... i think Rm20 a piece... that was like 5 years ago la friend.. hahaha.. now everything also increase in price already.. except no increase in my pay. :(
i want to know what the best piping size can be fit for 4G61t engine....i plan to put 2" piping size with one bullet.....is it ok?...i dont want too loud noise on my car...any suggestion....