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Browse this category to find performance software, ignition components, and other BMW and MINI engine components to help you create more power and burn fuel more efficiently.

For more than four decades, Bavarian Autosport has been helping BMW and MINI enthusiasts maintain, repair, and upgrade their vehicles while saving thousands of dollars in shop fees. Throughout our history it has been our mission to give every BMW or MINI owner the resources to take on nearly any repair or maintenance task themselves. With more than 100 DIY videos and free tech help available on our site, there is no job that is too big. We have a full team of advisors ready to answer your technical questions and help you find the right part for your BMW or MINI by phone or email. And if you aren't 100% satisfied with your purchase, returns are easy and hassle-free.

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  • Underdrive Pulley Kit - UUC

    Underdrive Pulley Kit - UUC

    PART#: UDPE34

    BRAND: UUC Motorwerks

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $228.95 / each
    Typically ships in 1-2 weeks.

    Availability: Direct Ship

    Ships for free if total order exceeds $99
  • Underdrive Pulley Kit - UUC

    Underdrive Pulley Kit - UUC

    PART#: UDPE36

    BRAND: UUC Motorwerks

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $228.95 / each

    Availability: Currently in stock

    Ships for free if total order exceeds $99
  • Underdrive Pulley Kit - UUC

    Underdrive Pulley Kit - UUC

    PART#: UDPE39

    BRAND: UUC Motorwerks

    This part is model specific. Please select a vehicle above to ensure that you get the correct part.

    $228.95 / each
    Typically ships in 1-2 weeks.

    Availability: Direct Ship

    Ships for free if total order exceeds $99