I've heard that TIAL, HKS, and TurboSmart are the best brands for the wastegate and bov. Im being offered 2 used garrett turbos for $750, to setup twin turbo kit. Between all parts and labor its about $4500-$5000.
I will soon have a custom built turbo for my Mustang 2011 V6 3.7. I would like to know in which intercooler kit, bov, wastegate, and turbine brands I can fully trust.