Thanks Sam and Gavin, sounds like porting the exhaust manifold may be the smartest move for me, followed by review of tune. I think I have a spare manifold here, so to source someone to port it. It's the low and mid-range I'm thinking to address, the turbo doesn't really engage without a reasonable level of acceleration and slow to boost. WOT power is fine, more would be nice and can be done (only ~16 psi atm), but more linear power and throttle response is the goal (which admittedly is difficult on boosted cars).
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