I was in another forum (evolutionm.net) and i came across this topic where a guy is selling his evo and upgrading to a M5. its his money so he has every right to buy whatever car he wants but he insulted the evo...
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....