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    BMW G90 M5 Primary Downpipes
    • BMW G90 M5 Primary Downpipes
    • BMW G90 M5 Primary Catless Downpipes
    • BMW G90 M5 Primary Heat Shielded Downpipes
    • BMW G90 M5 Primary Catted Downpipes
    • G90 M5 Primary Catted Downpipes

    BMW G90 M5 Primary Downpipes

    RS.G90M5.Pri.DP

    Unlock the full performance potential of your BMW G90 M5 or G99 M5 Touring with RedStar Exhaust Primary Downpipes, engineered specifically for the S68 twin-turbo V8 engine. These high-performance downpipes replace the restrictive factory primary catalytic converters, significantly improving exhaust flow while retaining a true bolt-on installation.

    The result is impressive power gains, faster turbo response, sharper throttle feel, and a more aggressive, motorsport-inspired exhaust note. Precision-built for durability and OEM-level fitment, RedStar Primary Downpipes are the ideal upgrade for M5 owners seeking maximum performance and an unforgettable driving experience.

    High Flow Catalytic Converter:
    Performance Heat Shield:
    Tunable 02 Sensor Spacers:
    $1,249.00
    Quantity

    Description

    Compatible Vehicles:

    • 2025+ G90 M5
    • 2025+ G99 M5 Touring

    *Available Options:

    • HJS HD 200cpsi- Ultra High-Performance catalytic converters. Made in Germany. The most reputed converters for their outstanding characteristics, quality and durability. These extremely robust converters allow you to achieve flow numbers close to straight pipes while meeting strict Euro 6 emissions standards. >> Read more about HJS cats.
    • GESI GEN2 400cpsi- catalytic converters rated for 1000hp. The new GEN2 series provides a significant improvement in exhaust flow over stock and offers the latest emissions technology. EPA Compliant catalytic converters have been third-party lab tested to meet or exceed local emissions standards in North America (excluding California) >> Read more about G-Sport by GESI cats.
    • OEM-style Heat Shielding- with ceramic inner liner, the best way to reduce radiant heat up to 70%. Usual thermal wraps not even close in effectiveness and durability to the Heat Shields. Must have option for the engines with turbochargers are located between the cylinder banks.
    • Straight Tunable 02 Spacers - Comes with 3 inserts to restrict flow to the 02 sensor and help set ready and prevent Engine Light conditions when using the Competition model without proper tuning.

    Main Features:

    • Significant power gain
    • 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.Sec.DP

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