I just stumbled across this PSI Concepts company, and found that they have a 20G turbo along with a T25 manifold. A buddy of mine just got a 2002 A4 5-speed 1.8t. His turbo sounds like a drill, and I want to suggest the 20g only because I totally loved the 20g on my old DSM. Any word on anyone who's used one? I'd love to hear about it.
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