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  1. #1
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    Final gear 2.91 .... or 2.81 ?

    Hello all

    I find lot of e36 whit turbo ou SC whit a final gear in 2.91 but anyone at test the 2.81 ?

    If you have feedback or any advice is welcome

    Thanks
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  2. #2
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    I have tested both on S50 B32 TT.

    You cannot feel the difference, both are similar in terms of traction.

    2,81 will have an edge on spool, very little.

    2,81 has thicker gears, stronger than 2,91.
    E36 M3 Euro TT 60-130 mph 4.49 s
    E46 M3 3.6L TT 60-130 mph 4.22 s
    All Wheel drive M3 Twin Turbo
    997 TT



  3. #3
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    These sets aren't too far apart from each other. 2.91 if you want more low end 2.81 if you want more top end.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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