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  1. V

    Replacing 2.92 Diff - Power / RPM

    I have a Berlina 6L Auto with a 2.92 diff. What sort of power gain is expected with a 3.45? Since it's 18% higher, would that be the difference in RPM (at the same speed) or am I off the mark? Basically just asking as a "bang for buck" upgrade and what I could expected. PS. I did do a search...