
VTT F8X M2C/3/4 BMW Ultimate Lightweight Rear Brake Kit
Description
F87 M2 / F80 M3 / F82–F83 M4
Looking to make your F8X M2C/M3/M4 faster in the 1/4-mile or 1/2-mile?
Want to run 17” rear wheels?
Want to retain the factory parking brake while dropping significant unsprung weight?
The VTT F8X Ultimate Lightweight Rear Brake Kit is engineered for straight-line performance while maintaining proper street functionality. This kit allows you to run the wheel and tire combo needed to lower ETs — all while putting your F8X on a serious weight reduction program compared to the factory rear setup.
✔ 17” rear wheel clearance
✔ Retains stock parking brake
✔ Up to 21 lbs total rear weight savings
True Plug-and-Play Design
Complete bolt-on system using genuine VTT components:
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VTT Custom 13” HD Rotors
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VTT 4-Piston or 6-Piston Calipers
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VTT Street or Race Brake Pads
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DOT-Approved Brake Lines
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VTT CNC 7075 Rotor Hats
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VTT CNC Brackets
Pad compatibility:
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4-Piston Dynapro Pad Style 7812
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6-Piston Dynapro Pad Style 6712
More aggressive pad compounds are available from multiple manufacturers to tailor performance to your application.
Fitment Guide – Rear
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F87 M2 / M2 LCI
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F80 M3 / M3 LCI
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F82 M4 / M4 LCI
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F83 M4 / M4 LCI
HD 6-Piston Version
Designed for:
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Street driving
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Track duties
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Drag racing
Includes 13” HD rotors and VTT 6-piston calipers.
HD 4-Piston Version
Designed for:
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Street use
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Drag racing
Includes 13” HD rotors and VTT 4-piston calipers.
OEM Rear Steel Setup
27.1 lbs per side
54.2 lbs total
VTT 4-Piston HD Kit
16.6 lbs per side
29.2 lbs total
✔ ~21 lbs total savings
VTT 6-Piston HD Kit
18.1 lbs per side
36.2 lbs total
✔ ~18 lbs total savings
Component Weights
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HD Rotor: 11 lbs
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VTT 4-Piston Caliper: 3.6 lbs
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VTT 6-Piston Caliper: 5.1 lbs
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Rotor Hat: 2 lbs
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4-Piston Pads (per side): 1.0 lb
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6-Piston Pads (per side): 1.7 lbs
Important Disclaimer
These HD kits are designed for street use and drag racing.
They are NOT intended for heavy braking environments such as:
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Auto-X
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Road Racing
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Extended track sessions
Always operate within your limits.
Bedding Procedure – CRITICAL
Proper pad bedding is mandatory to achieve full braking performance.
Failure to properly bed pads may result in:
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30–50% braking effectiveness
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Pad glazing
If glazing occurs:
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Remove rotors
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Sand pads
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Re-bed properly
Your kit includes a bedding instruction card. Follow it exactly.
Compatibility
Please make sure this part matches your vehicle before ordering.
Compatibility Check
To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number (UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.
Part Number
VTT-BMW-F8X-REAR-BRAKE
More Information
Manufactured by
VTT - Vargas Turbocharger Technologies