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Discussion Starter · #1 ·
I have a PTE 91.5B turbo.What would be the difference between the regular 91 and this one.

I`m also looking to upgrade to a 94mm unit.Is there turbos out there that are trimmed down to fit certain rules like a 98/88.

just looking for info.All this is going on a turbo V6 Buick.

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