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    BMW G90 M5 Secondary Downpipes
    • BMW G90 M5 Secondary Downpipes
    • BMW G90 M5 Heat Shielded Secondary Downpipes
    • G90 M5 Secondary Downpipes

    BMW G90 M5 Secondary Downpipes

    RS.G90M5.Sec.DP

    Enhance your BMW G90 M5 (S68 engine) with RedStar Exhaust Secondary Downpipes, engineered to unlock increased performance and a more aggressive exhaust character. These downpipes replace the restrictive factory secondary catalytic converters, significantly improving exhaust flow while maintaining a complete plug-and-play installation.

    Designed for precise OEM-level fitment, this upgrade delivers added power, sharper throttle response, and enhanced turbo performanceโ€”without triggering check engine lights or error codes. Perfect for enthusiasts seeking a hassle-free performance upgrade, RedStar Secondary Downpipes elevate both sound and driving dynamics of the all-new G90 M5.

    High Flow Catalytic Converter:
    Performance Heat Shield:
    $779.00
    Quantity

    Description

    Compatible Vehicles:

    • 2025+ G90 M5
    • 2025+ G99 M5 Touring

    *Available Options:

    • OE-style Heat Shielding with ceramic inner liner - signature REDSTAR thermal management feature that reduces radiant heat from the exhaust pipes up to 70-80%. Being inspired by racecar engineers who uses it alot, we moved heat shielding to the tuning industry and made it available as an option for any REDSTAR products. Usual thermal wraps or ceramic coatings are not even close in effectiveness and durability to our Heat Shielding. Please be aware of fake shielding when it is nothing but foil wrapped around the pipe. Without a sufficient ceramic wool layer inside and properly embossed foil it will not work as expected.

    Main Features:

    • Significant power gain
    • No Check Engine Light
    • Faster spool up and better throttle response
    • Increasing the life of the turbos 
    • Reducing under hood temperature
    • Adds a very nice tone to the exhaust
    • 100% bolt-on installation
    • 100% TIG welded and back purged
    • Highest quality 2.0mm wall 304 stainless steel
    • OEM-spec flanges
    • All brackets and mounts as on OEM unit
    • Limited lifetime warranty 

    Shipping:

    We offer WORLDWIDE shipping. Once you create your account your order will update with the appropriate shipping cost. Please, ask us for details and availability.

    Notes:

    Tuning: For ECU tuning, we highly recommend Purisic Performance to ensure optimal performance and calibration. Contact: purisicperformance@outlook.com | (239) 777-7381

    OFF ROAD/MOTORSPORT USE ONLY! 
    This product is not designed to meet any emissions/noise standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions controlled vehicles in any country/jurisdiction.
    Product Details

    Data sheet

    Engine Type
    4.4L Twin Turbo
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    Reference: RS.G90M5.Pri.DP

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