Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI
  • Load image into Gallery viewer, Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI

Fall-Line Motorsports Front Thrust Arm/Tension Strut Monoball Conversion Kit V2 for BMW F8X M2/M3/M4 (F87/F80/F82) – Spherical Bearing Upgrade – Replaces OEM 31122284532 – FLM-F87-1BUNI

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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Fall-Line Motorsports F8X M2 / M3 / M4 Front Monoball Conversion Kit V2

Transform the front end of your BMW F8X with the Fall-Line Motorsports Front Monoball Conversion Kit V2. This spherical bearing upgrade replaces the soft factory rubber bushing to eliminate deflection, sharpen steering response and deliver confident, consistent handling on road and track. Precision machined in the USA with a hard coat clear anodised finish, this is the proven front suspension upgrade for BMW M2, M3 and M4 owners who want the most direct steering feel and stability under braking.

We have installed and used this kit ourselves at Nforcd, and customer feedback has been outstanding. Expect a more connected front end, improved turn-in, rock-solid braking stability and repeatable alignment performance lap after lap.

Why choose the Fall-Line Front Monoball Kit

  • Monoball spherical bearing replaces the OEM rubber thrust arm bushing to remove unwanted flex
  • Precision machined aluminium housing for exceptional rigidity and durability
  • Eliminates geometry change under load for stable camber and toe during cornering and braking
  • Sharper steering feel, faster response and improved on-centre stability
  • Immediate improvement to driving dynamics, confidence and feedback
  • V2 design with hard coat clear anodised finish for long-term protection
  • Direct replacement for the bushing found in OEM BMW part number 31-12-2-284-532 / 31122284532
  • Proudly made in the USA by Fall-Line Motorsports

Fitment

BMW F8X platform:

  • BMW F87 M2
  • BMW F80 M3
  • BMW F82 M4

Part numbers

  • Manufacturer cross reference: FLM-F87-1BUNI
  • OEM BMW compatibility: 31-12-2-284-532 / 31122284532

Installation and support

Professional fitting is recommended to ensure correct installation and alignment. Nforcd offers fitting services at our workshop in Warwickshire. To request a quote, contact Sales@nforcd.com.

SEO and search terms

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