Son of a b*tch. So I finally ordered that 6176e with the T4 on-center housing only to receive an email a week later stating that precision no longer makes the T4 On center housing at all. Im in the process of confirming this as precision still lists it on their website, but if this is true what else are my options? I contacted cartuning twice to purchase one of their PT61 turbos but never got a response.