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  1. #1
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    Lightbulb MFactory LSD Rebuild Service - From $1500 inc shipping!

    Hey guys,

    now that the group buys for our LSD's are over, we have decided to start offering our pumpkin rebuild services.

    Available for: E46, E8X and E9X

    Notes for 135i & 335i Models:

    - 135i MT: All models use the welded differential
    - 135i AT: All models use the small bolted differential
    - 135i DCT: All models use the welded differential
    - 335i MT: Aug '06 - Feb '07 use the large bolted differential. Apr '07 onwards all use the welded differential
    - 335i AT: Aug '06 - Aug '07 use the large bolted differential. Sep '07 onwards all use the small bolted differential
    - 335i DCT & 335d: All models use the welded differential

    Rebuild Service Simply ship your pumpkin to us, or we can use a pumpkin that we have in stock, and we'll handle the rest:

    - Prior to assembly, all parts are cleaned, inspected, and polished in a deburring machine with ceramic media
    - Preload, gear clearance and torque will all be inspected and adjusted for superior performance
    - Housings are media blasted to give a 'better than new' look
    - Includes Brand New MFactory Helical LSD

    Price/Availability:
    - All fitments: $1500 inc shipping
    - Additional $500 core exchange applies (refundable after we receive your original core back)
    - 135i/335i Welded Fitments: We currently have 1 x 3.46 ratio core in stock that is available. After this, until we get more cores, or our new Ring & Pinion is ready, we are unable to offer this service
    - 135i/335i DCT/335d: Until our new Ring & Pinion is ready, we are unable to offer this service

    Any questions, please don't hesitate to ask Click here to enlarge
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

  2. #2
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    Not that I will track my car very often but would like to do it couple times at least/year once I'll be ready. I read from one of the Maz forums that the guy had MFactory installed and it gave up after a few laps.

    Was this just an issue with installation for that car? This was the reason I'm leaning torward Quaife now.

    Do we have any e90 with MFactory and no issues whatsoever after few track visits?

  3. #3
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    AFAIK, no one has ever had an issue with our Mazda fitments and we've sold hundreds of them?!? If they have, they've never contacted us about it anyway so we could diagnose and sort the issue. Could you PM me the link to the forum?

    Besides, all of our LSD's come with a Lifetime Warranty, so if you were to run into any issues with the LSD, you would be covered (the same cannot be said for the Quaife, depending on "where" the seller purchased it from. Most are back-doored in from the UK rather than through Motovicity in the US, so DO NOT have a warranty. The bad thing is, not even the sellers realise that)

    We have sold a lot of the LSD's on this forum, so best would be to ask around on the other LSD threads Click here to enlarge
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

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    It seems like the new F30 335 and probably 235i also use a 3.08 gear, but difference being is they use it in the automatic cars...

    Everyone is waiting on your ring/gear to be manufactured.

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    PM sent. Thanks for the clarification. Good stuff. Now I just need to make a decision :-)

  6. #6
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    What about changing the final drive?
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


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

  7. #7
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    We don't have any spare oem final drives in stock at the moment, but if you were to send us one, we could install it, yes.
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

  8. #8
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    Click here to enlarge Originally Posted by MFactory Click here to enlarge
    We don't have any spare oem final drives in stock at the moment, but if you were to send us one, we could install it, yes.
    So only the diff huh. We can't bring the whole car down if we are local Click here to enlarge
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  9. #9
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    Our facility doesn't have the space nor equipment to work on cars directly unfortunately Click here to enlarge
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

  10. #10
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    Click here to enlarge Originally Posted by MFactory Click here to enlarge
    We don't have any spare oem final drives in stock at the moment, but if you were to send us one, we could install it, yes.
    I don't want OEM but that's ok.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


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

  11. #11
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    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

  12. #12
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    Some images of a recent rebuild:

    Before:
    Click here to enlarge

    Cleaned in our Ceramic Tumbler:
    Click here to enlarge

    LSD Installed:
    Click here to enlarge

    Finished Pumpkin:
    Click here to enlarge
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

  13. #13
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    We have 5 x Large Diff 3.46 Cores in stock at the moment, for those who don't want to wait and don't mind upgrading from the 3.08 to the 3.46 ratio (which will give you faster acceleration).

    Will fit: 135i/335i/535i MT

    Special Offer: Normal price for our fully reconditioned core with new LSD is $1500 + $500 core exchange. For these 5 cores only, I can offer you an additional 10% discount on the reconditioned core i.e $1350 + $500 core exchange Click here to enlarge

    First-Come-First-Served. Nowhere else will you be able to find a fully reconditioned core with new Helical LSD for $1350!
    - MFactory Competition Products
    -- technik.teamMFactory.com --

    Got Questions? Read our Limited-slip Differential FAQ: http://www.bimmerboost.com/showthrea...fferential-FAQ

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