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I have done some reading on the E90 post and it looks like the N54 uses MAP sensors, not a MAF.
I will consider a BOV. There is nothing wrong with a little "whoosh" after throttle lift.
No screeching banshee trumpet siren, prob look at one of the hybrid valves, reroutes back into the intake, but also has a VTA.
The one I used on my miata was great - the VTA port sat higher than the recirc port. And average dump would just recirculate, but if you were running high boost and got off it fast it would VTA.
Sad to see people having to poop all over the fun. If you don't want one on your car, well, don't get one. Does it need it? Hell no. But what do you care?
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