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Ksport BKBM011-621SO Floating Rotor Big Brake Kit Piston Caliper - 4/6/8

(1988-1991 BMW M3)

Manufacturer

Part Number

BKBM011-621SO
Sale Price

$1,810.46

Estimated ship date Friday, November 27

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ksport BKBM011-621SO is a high-performance big brake kit featuring a floating rotor design with your choice of 4, 6, or 8 piston caliper configurations. Engineered to deliver superior stopping power over factory brake systems, this kit significantly reduces brake fade while continuously cooling and refreshing the brake pad surface during repeated braking events.

Caliper Features:

  • Extreme lightweight one-piece caliper in differential bore configuration
  • CNC machined from aircraft-quality billet aluminum
  • Weighs just over 5 lbs. each for reduced unsprung weight
  • Machined-in protection grooves for bridge tube integrity
  • Aluminum pistons with high-temperature seals
  • Stainless-steel brake pad wear plates included on every caliper
  • Opposed piston design for improved pad wear and caliper rigidity over OEM

Rotor Features:

  • 2-piece floating disc assembly reduces both rotating and unsprung weight
  • Floating disc design prevents thermal stress warping and braking surface cupping under extreme heat
  • Unique slot design expels gas and pad debris faster than conventional slot patterns
  • Every rotor is heat treated and balanced prior to shipment
  • Cross-drilled rotors run cooler — recommended for daily-driven applications
  • Slotted rotors recommended for track and performance-focused use

Hardware & Lines:

  • Stainless-steel braided brake lines prevent hose expansion under pressure for consistent pedal feel
  • Designed for straightforward installation with minimal tools required in most applications

Available in 4, 6, or 8 piston caliper configurations, the Ksport BKBM011-621SO big brake kit delivers race-proven braking technology for drivers who demand the highest level of performance and reliability from their brake system.

Products specifications

Fits

1988-1991 BMW M3

Caliper

ProComp 6 Piston

Rotor Size

12in

Rotor Style

Slotted

Fast ordering system

it was fast

Really pleased with the service I had. They had the best price I could find, and they shipped quickly. Highly satisfied

Always great prices, fast shipping and great communication. Will order again from Autoplicity. Order#17421.

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