I know nothing about twisted mounts but just say I left my motor exactly as it was but twist mounted the turbo, would I actually feel the difference?, Not thinking of my car but a project that I'm hoping will take Subaru running gear and will probably have a fair bit of room between the firewall and engine and no pollution gear will be needed.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.