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Ksport BKBM011-611SO Supercomp Big Brake Kit Floating Rotor Slotted 4/6/8 Piston Caliper Options

(1988-1991 BMW M3)

Manufacturer

Part Number

BKBM011-611SO
Sale Price

$1,700.74

Estimated ship date Thursday, November 26

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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 BKBM011-611SO Supercomp Big Brake Kit delivers a significant upgrade in stopping performance over factory brakes. Engineered with advanced brake technology, this kit substantially reduces brake fade while continuously cooling and refreshing the brake pad surface during sustained braking. The bolt-on design requires minimal tools and no vehicle modifications in most applications.

Caliper Construction:

  • Lightweight one-piece caliper CNC machined from aircraft-grade billet aluminum
  • Available in differential bore configuration with 4, 6, or 8 piston options
  • Weighs just over 5 lbs. each — significantly lighter than OEM calipers
  • Machined-in protection grooves for bridge tubes
  • Aluminum pistons for superior heat resistance and consistent operation
  • High-temperature seals and stainless-steel brake pad wear plates standard on every caliper
  • Opposed piston caliper design improves pad wear evenness and overall caliper rigidity versus OEM

Rotor Design:

  • Two-piece disc assembly reduces both rotating and unsprung weight
  • Floating rotor design allows the outer ring to shift slightly for better self-centering in the caliper, reducing brake drag and improving braking consistency
  • Floating construction prevents thermal stress from warping the disc or cupping the braking surface under extreme heat
  • Proprietary slot pattern expels gas and pad debris faster than conventional slot designs while minimizing brake noise
  • Every rotor is heat treated and precision balanced prior to shipment
  • Slotted rotor style recommended for track-focused or performance driving applications

Brake Lines & Hardware:

  • D.O.T.-compliant stainless-steel braided brake lines included as standard
  • Stainless-steel construction prevents line expansion under pressure for a firmer, more responsive pedal feel
  • CNC machined carbon steel caliper brackets included for a direct bolt-on fit

Included in Kit:

  • Calipers (choice of 4, 6, or 8 piston configuration)
  • Floating slotted brake disc
  • Brake pads (SC5 NAOC ceramic street pads standard)
  • Stainless-steel braided brake lines
  • All required mounting hardware

Warranty: All Ksport Big Brake Kits include a 12-month limited warranty covering manufacturer defects. Note: Ksport Big Brake Kits are built to order.

Products specifications

Fits

1988-1991 BMW M3

Caliper

ProComp 6 Piston

Rotor Size

11in

Rotor Style

Slotted

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