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Ksport BKBM030-445CO DualComp Big Brake Kit Dual Caliper 4-Piston

(BMW 328i 1999-2000, M3 1999, 2001-05, 325i 2001-05, 320i 2001-05, 325Ci 2001-05, 318ti 1999, 323i 1999-2001, 318i 1999, 318is 1999, 323Ci 2000 + 4 more models)

Part of: Ksport DualComp Big Brake Kit 4-Piston Caliper

Other options in this family: Ksport BKAC030-434CO Ksport BKAC030-434SO Ksport BKAC030-444CO Ksport BKAC030-444SO Ksport BKAC040-434CO

Manufacturer

Picture for manufacturer Ksport

Part Number

BKBM030-445CO
6 reviews
Sale Price

$3,127.16

Estimated ship date Saturday, November 28

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Product Details

The Ksport BKBM030-445CO DualComp Big Brake Kit is a complete dual-caliper braking solution engineered for drivers who demand independent foot brake and handbrake performance from a single, compact 4-piston caliper. Ideal for performance driving and motorsport applications, the DualComp system delivers serious stopping power without compromising packaging or installation complexity.

How the DualComp System Works:

Unlike conventional big brake kits that use separate calipers for the foot brake and handbrake, the Ksport DualComp uses a single 4-pot (4-piston) caliper. Two pistons are dedicated to the hydraulic foot brake circuit, while the remaining two pistons operate the handbrake — each system running completely independent of the other for precise, reliable control.

Key Features:

  • Dual-function 4-piston caliper — 2 pistons for foot brake, 2 pistons for handbrake, fully independent circuits
  • Floating brake disc for improved heat dissipation and reduced disc warping
  • Complete bolt-on kit — no fabrication required
  • Includes high-performance brake pads matched to the caliper and disc
  • All required mounting hardware included for a clean installation
  • Designed for performance, competition, and motorsport use

What's Included:

  • 4-Piston DualComp Caliper(s)
  • Floating Brake Disc(s)
  • Performance Brake Pads
  • All Required Hardware

The Ksport DualComp Big Brake Kit is the definitive upgrade for enthusiasts seeking a sophisticated, race-proven braking solution that handles both foot brake and handbrake duties in one integrated package.

Products specifications

Fits

BMW 328i 1999-2000, M3 1999, 2001-05, 325i 2001-05, 320i 2001-05, 325Ci 2001-05, 318ti 1999, 323i 1999-2001, 318i 1999, 318is 1999, 323Ci 2000, 328is 1999, 323is 1999, 328Ci 2000, 323ti 1999-2000

Caliper Type

4 Piston

Ksport Product Category

Big Brake Kits

Caliper Inlet Port Diameter

M10 x 1

Position

Rear

Ksport Product Sub-Category

Dualcomp Big Brake Kit

Rotor Diamater (in)

14

Caliper Piston Quantity

4

Anti-Rattle Spring Included

Yes

Surface Type

X Drilled

Friction Material Composition

Ceramic

Rotor Diamater (mm)

356

Caliper Piston Material

Aluminum

Rotor Width mm

32

Caliper Slides Included

Yes

Rotor Style

Drilled

Rotor Type

Fixed

Caliper Color

Orange

Pad Shims Included

No

Subject to CARB? Yes/No

No

Caliper Casting Material

Aluminum

Disc Brake Rotor Construction

Vented

Rotor Outside Diameter

14

Color

Orange

Mounting Bracket Included

Yes

Grade Type

Performance

easy to find needed part

Easy navigation.

Good service

Very satisfied.

Very good service

I came across this website through a google search for tires. They had the exact tires i was looking for at the lowest price! Shipping was super quick, and they were perfect, arrived in perfect condition, perfect size. everything. I was kinda nervous on what i would receive being i ordered tires online lol but they did not disappoint. I will DEFINITELY be buying from them again!

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