You won't get the full flow out a of a t0476 trim turbine in a Garrett .63. I've used MFS 62 compressor with the t0476. It's good for low 10's but I doubt it would get the potential out of the turbine. Going to a t4 with external gate opens up selection a lot. The EFR turbos can be used. They will spool faster relative to supported mass flow than anything
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