Thread: 335I BOV
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      06-12-2009, 01:13 PM   #45
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Originally Posted by Grendalf View Post
This is happens to a lot of Subaru owners a few years ago. BOV do actually mess up the A/F ratio during shifts, you need a tune to compensate correctly and I am not sure if JB3 or PROcede can do that.

Regarding the choice of a BOV or not, I would get a new charge pipe with upgraded DVs which seems the best choice for our car.
Subaru owners were having troubles because their car are maf based. You do not need a tune to help run a bov on this car.
Mods list got too long, lets just say more than enough.