Replaced the DV with the newer Revision E as I'm very picky and it felt like the Revision D wasn't pulling its weight as the boost gauge was dropping off when the turbo should kick in. Old Rev D is on the left and Rev E is on the right
it's a pretty straight forward job to do, if in doubt look on the forge websites for their blow off valves, they give an instruction sheet which shows you how to remove the standard one.
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