MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: B25SDJ on February 06, 2026, 12:41:57 pm
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Ive been told that its not worth getting a blow of valve and i should just keep the recirc? whats the verdict? i want some nice noise from it. does it damage the car.
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Because the car runs a MAF sensor based fuelling system, any unmetered air from an atmospheric BOV will upset the fuelling, could cause lumpy running and stalling.
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If you want some noise from it, stick an aftermarket intake, k04 dv relocation kit, a rev G dv and get it mapped. If mapped, you can use a DV+ if k03, rev G if k04. DV+ cant really deal with the pressure a K04 works with and will throw CEL
Also noise depends on the pressure the map demands of it.
First video was recorded with a k04 with a dv+ and 1.55 bar peak pressure. 2nd video is 1.45 bar peak and a rev G. The noise is still there just not as continuous. I have to be under WOT for it to happen. Also this was recorded when my downpipe-muffler buckle came apart so i was basically running a catless straight pipe