I came upon this recently as I was searching a few webpages. Voila! A split dp that seperates the turbo and wastegate gases from the garret turbos. These splits have performed wonderfully for the s4 guys running on much smaller k04s. Should even have a greater effect on my t28. Hopefully I'll get it on within the month.
http://www.tantrumwerks.com/html/18shotgunphotos.html
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