It takes work away from the turbo. Will deff be a gain in a Ewg. Turbos only concern now is spinning instead of that and working the Iwg. I have a Gs uppipe and tial 44 and i love it.
Only opens at full boost. Scares drivers and people. Dumps under my pass seat as well. I have a 1ft dump tube instead of the small one that comes stock. Mine passes the cv axel.