See that is exactly what I don't want... I want a nice extra hummm sound... louder than stock but not loud like that.... that is too much for me... in that case I think that the M3 is proly just right all tho I've never heard it, someone in here rated it a 3 between 1 (stock) and 10 (UUC). In any case I think amma do both if I have enough... I'm hoping to find a ECIS intake for a good price like the one that was for sale here, but it sold before I could get my hands on it
