BMW E30 Gr.A DTM rear axle components

  • €678,00
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RODOBAL rod end / spherical bearing upgrade (service) available for this kit, click here

BMW E30 Gr.A DTM rear axle components for BMW E30 / E30 M3 / E36 Z3 / Z3M / E36 Compact

New (4/2022) product line up now available!

  • Double adjuster -kit made per 90-92' DTM specification

    • 40mm camber adjustment range, 30mm toe adjustment range

    • Camber quick adjustment on the adjuster bottom end

    • Spherical inner joint -conversion

  • Double adjuster -kit horizontal mounting can be used with original subframe pickup points and trailing arms

    • Additional trailing arm A-brace reinforcement is required with the conversion

    • Notching of the chassis above the adjuster body might be required depending on adjuster position and alignment

  • Double adjuster -kit vertical mounting must be used with modified subframe pickup points

    • Allows adjustment of rear roll-center / weight transfer via 3 pair of different height rod end spacers

  • Narrow sweep pickup points + inner end reinforcements -kit converts your subframe to 90-92' DTM specification with less angle change on suspension travel

    • To be paired with Double adjuster -kit with vertical mounting (MRT-20007-4V)

    • Allows you to bolt up subframe outer pickup points directly to roll-cage for extra stiffness 

    • Must be used with purpose built trailing arms, original trailing arm geometry won't match the pickup point location and/or rod end alignment 

  • Solid subframe bushings -kit converts your subframe body mounting to 90-92' DTM specification

  • Sway bar mounts + exhaust brackets -kit converts your subframe sway bar mounts to 90-92' DTM specification

    • Must be used with lifted center section and purpose built DTM style sway bar 

  • Lifted center section -kit converts your subframe differential mounting to 90-92' DTM specification

    • This kit lifts up the differential cradle by 30mm

    • Major modifications required 


  • MRT Engineering decals included

    Why do you need one?

    When lowering your car rear end toe and camber angles will significantly change on this platform. With these kits you can correct your rear wheel angles and/or convert your subframe and/or trailing arms to 90-92' DTM specification with super sharp and precise steering feel with optimal grip on any applications.

    Does it fit my car?

    The components are meant to be used on BMW E30 / E30 M3 / E36 Z3 / Z3M / E36 Compact rear axle. With minor modifications they can be adapted on other similar type trailing arms too. See available variations:


    • Double adjuster kit with spherical inner joints, horizontal mount (for OE trailing arm and subframe)
    • Double adjuster kit with spherical inner joints, vertical mount (not suitable for OE trailing arm)
    • Narrow sweep pickup points + inner end reinforcements, DIY kit
    • Solid subframe bushings, DIY kit
    • Sway bar mounts + exhaust brackets, DIY kit
    • Lifted center section, DIY kit

    Is it easy to install?

    MRT-20007-4H Instructions, PDF

    MRT-20007-4H Assembly drawing, PDF

    Subframe components Assembly drawing, PDF

    Installing the kit is only recommended for enthusiasts with knowledge of car repairs and welding skills. Modifications needs to be done in a purpose made jig or using our cutting templates. Rear trailing arm removing, cutting and welding is required for both inner and outer ends.

    If you need any further info please contact us!

    How about the lifetime and service of the kit?

    The kits have been proven on street and track applications by hundreds of our customers. We're constantly doing R&D to make the kits even better, all improvements are based on customer feedback which is very important to us.
    We have proven the very same bearings with no maintenance for 20,000 kilometers, through the year, in daily use without signs of excessive wear. When the bearing life comes to an end, they're easily replaceable! Bearings are available around the world from automotive and industrial dealers and any of the spare parts can be also bought separately from us.

    We want to keep our customers 100% happy thus we're only using the best materials and manufacturing processes available. All parts are CNC machined: highest quality CrMo tool steel is used on the adjuster parts which are zinc plated for best corrosion resistance, welding is made easy with high tensile structural steel and small spacers/adapters used on the kits are 304 stainless steel.

    We use DHL Express shipping for all items. Please find your order tracking information from DHL website.