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Ksport BKBM010-611SO Procomp Big Brake Kit 11.3 in. Slotted Floating Rotor 6 Piston

(1987-1991 BMW 325i; 1984-1985 BMW 318i; 1987-1991 BMW 325is; 1984-1987 BMW 325e; 1991 BMW 318is; 1988-1991 BMW 325iX; 1986-1988 BMW 325; 1986-1987 BMW 325es)

Manufacturer

Part Number

BKBM010-611SO
Sale Price

$1,700.74

Estimated ship date Thursday, November 26

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ksport BKBM010-611SO Procomp Big Brake Kit is a sophisticated bolt-on brake upgrade engineered to deliver enhanced stopping power under sustained high-heat conditions. Featuring an 11.3-inch (286mm) slotted floating rotor and available in 4, 6, or 8 piston caliper configurations, this system is built for drivers demanding serious brake performance upgrades over the factory setup.

Caliper Construction:

  • One-piece CNC-machined construction from aircraft-grade billet aluminum — providing lightweight strength, uniform wall thickness, and corrosion resistance
  • Differential bore configuration for progressive, controlled braking force across all pistons
  • Weighs just over 5 lbs. per caliper — significantly reducing unsprung weight
  • Aluminum pistons for superior heat resistance and consistent operation
  • High-temperature seals and stainless-steel brake pad wear plates standard on every caliper
  • Machined-in bridge tube protection grooves for added structural integrity
  • Opposed piston design improves pad wear uniformity and caliper rigidity over OEM

Rotor & Brake Line Technology:

  • Two-piece floating disc assembly reduces both rotating and unsprung weight
  • Floating outer disc section shifts slightly as needed for better self-centering in the caliper, lowering brake drag and improving even pad application
  • Floating design prevents thermal stress from warping the disc or cupping the braking surface under extreme heat
  • Unique slot pattern reduces braking noise and expels gas and pad debris faster than conventional slot designs
  • Every rotor is heat treated and dynamically balanced before shipment
  • D.O.T.-compliant stainless-steel braided brake lines eliminate hose expansion under pressure for a firmer, more responsive pedal feel

Included in the Kit:

  • Multi-piston caliper(s)
  • Floating slotted brake disc(s)
  • NAOC ceramic brake pads
  • Stainless-steel braided brake lines
  • All required installation hardware

Rotor Style Guide:

  • Slotted rotors (this kit) — recommended for vehicles with frequent track use; continuously clean and refresh the pad surface for maximum bite
  • Cross drilled rotors — run cooler and are recommended for primarily street-driven vehicles

Installation is straightforward and requires no vehicle modifications in most applications. All Ksport Big Brake Kits are covered by a 12-month manufacturer's warranty against defects. OEM ABS systems remain fully functional with this brake kit installed.

Products specifications

Fits

1987-1991 BMW 325i; 1984-1985 BMW 318i; 1987-1991 BMW 325is; 1984-1987 BMW 325e; 1991 BMW 318is; 1988-1991 BMW 325iX; 1986-1988 BMW 325; 1986-1987 BMW 325es

Caliper

ProComp 6 Piston

Rotor Size

11in

Rotor Style

Slotted

Shipping was 5.00 on a 1.99 part but considering ebay was asking 18.00 for it I'm very happy

This site is awsome! excellent customer service, lowest rate, Fast shipping!<br><br>I will save this site for my bookmark! %100 must check auto store site.

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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