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Well, my MAFS and the throttle body are both 2.5" so i will have to adapt somewhere anyways. The only thing i was thinking was that isn't 4 psi different on 2.5" compared to 2"? I mean, the air is at the same pressure, but the amount of it is bigger in the 2.5" pipe... I mean i realize there are trade offs of both setups. 2.5" piping - turbo spooling faster - air gets hotter - less power. 2" piping - volume of the air almost 2/3 of the volume with 2.5" piping - lack of air at top rpms - loss at top rpms.... Also, won't different size affect the actual psi? Like psi in 2" piping would be like only a percentage of that in the 2.5" piping... although now i'm thinking it's the same thing...? Bleh. confused... would be great if someone explained it to me...
As for the BOV, it doesn't really matter if it's a woosh or pffft sound. I'm more concerned about whether it will leak or not and if it's gonna respond quick enough. Thanx for the input.
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