Originally Posted by Greywolf
The car is looking for the air to be recirculated. When you go external it shoots out and car can't make it up, tune for external bov and you won't have a problem
tune for an atmospheric BOV on a MAF based vehicle.
As far as my recommendation, I went with a GoFastBits TMS valve, which is "infinitely" adjustable between full recirv and full atmospheric. You just twist the top of it like a dial. I currently have mine set to something like 15% atmospheric and I can still hear the "pssh". It's a high quality piece.
Originally Posted by car_cursed
Have you had the car tuned for these mods?
He says he has an AP in the very first post.