Quote:
Originally Posted by Vanne
Btw, the OEM CSL snork flap is closed only at idle/below 3k rpm, and yeah oem Z4 air hole at that rpm that will provide enough flow at this stage, when that flap opens, it's a whole different ball game.  the flap is there predominantly for noise. Once it opens, it's there to let as much air in as possible. (Within reason of course) |
Out of curiosity, the M3 CSL what kind of ram air does it have? Because I don't have a clue about it.