Ultra Racing BMW M3 F80 / M4 F82 8-Point Rear Lower Brace – URKR-RL8-3013
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Ultra Racing 8-Point Rear Lower Brace – BMW M3 F80 / M4 F82 – URKR-RL8-3013
The Ultra Racing URKR-RL8-3013 is an 8-point rear lower chassis brace designed for the BMW F8x M platform, covering both the F80 M3 and F82 M4. Mounted beneath the rear of the car, it ties together multiple structural points across the lower chassis and subframe area to increase support under load.
With eight mounting points, the RL8-3013 provides a much broader reinforcement structure than a conventional 2-point rear brace. This helps distribute cornering and acceleration forces across a larger section of the rear chassis, making it particularly relevant to performance-focused cars running uprated suspension, aggressive geometry or high-grip tyres.
Rather than altering spring rates, damping or anti-roll bar stiffness, the brace works by strengthening the structure that the rear suspension operates from. This makes it a useful addition to fast-road and track-focused F80 M3 and F82 M4 builds where chassis consistency and rear-end support are priorities.
Key Features
• 8-point rear lower chassis / subframe brace
• Designed for BMW F80 M3 and F82 M4
• Reinforces multiple lower rear chassis mounting points
• Provides wider structural support than a 2-point rear brace
• Helps reduce unwanted chassis movement under load
• Supports more consistent rear suspension behaviour
• Suitable for fast-road and track-focused builds
• Steel construction
• Bolt-on installation
• Approximate dimensions: 153 × 76 × 13 cm
• Approximate weight: 5.5 kg
• Part number: URKR-RL8-3013 / UR-RL8-3013
Vehicle Fitment
BMW M3 F80
3.0 Twin-Turbo
2014–2018
BMW M4 F82
3.0 Twin-Turbo
2014–2020
Ultra Racing’s own exact application data lists URKR-RL8-3013 for both the BMW F80 M3 and F82 M4.
Product Details
Brand: Ultra Racing
Product Type: Rear Lower Brace / Rear Member Brace
Position: Rear / Lower
Mounting Points: 8
Construction: Steel
Installation: Bolt-on
Dimensions: Approx. 153 × 76 × 13 cm
Weight: Approx. 5.5 kg
Part Number: URKR-RL8-3013
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