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Ksport BKSB040-621CO Floating Brake Rotor Big Brake Kit or Piston Caliper Options - with 4 6 8

(2002-2007 Subaru Impreza WRX)

Manufacturer

Part Number

BKSB040-621CO
Sale Price

$1,810.46

Estimated ship date Friday, November 20

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ksport BKSB040-621CO is a high-performance floating brake rotor designed as part of Ksport's big brake kit system, available with 4, 6, or 8 piston caliper options to suit a range of performance driving applications. Engineered to deliver maximum stopping power while significantly reducing brake fade, this system integrates advanced braking technology to continuously cool and refresh the brake pad surface under hard braking conditions.

Rotor Design & Construction:

  • Floating 2-piece disc assembly reduces both rotating and unsprung weight for improved handling dynamics
  • Floating disc design prevents thermal distortion — stops heat-induced warping and cupping of the braking surface under extreme temperatures
  • Unique slot pattern rapidly expels gas and pad debris while reducing braking noise more effectively than conventional slot designs
  • Every rotor is heat treated and balanced prior to shipment for consistent, high-quality performance

Caliper Features:

  • Extreme lightweight one-piece opposed piston caliper in differential bore configuration
  • CNC machined from aircraft-grade billet aluminum; weighs just over 5 lbs. each
  • Machined-in protection grooves for bridge tubes add structural integrity
  • Aluminum pistons with high-temperature seals for reliable performance under sustained heat
  • Stainless steel brake pad wear plates standard on every caliper
  • Opposed piston design improves pad wear evenness and caliper rigidity over OEM designs
  • Stainless steel brake lines prevent line expansion under pressure for a firm, consistent pedal feel

Performance Notes:

  • Designed for straightforward installation with minimal tools required in most applications
  • Cross-drilled rotors run cooler and are ideal for street/daily driven vehicles
  • Slotted rotors are recommended for track and performance-focused applications

The Ksport BKSB040-621CO floating rotor big brake kit delivers a proven upgrade over factory braking systems, combining reduced weight, improved thermal management, and superior pad contact for drivers demanding confidence-inspiring brake performance on the street or track.

Products specifications

Fits

2002-2007 Subaru Impreza WRX

Clear, easy-to-navigate website, reasonable shipping cost.

Placing the order was easy, I hope receiving the order is just as quick and easy.

This website was easy to use.

You offered me a good price on a product i've been having trouble locating

Great

Great so far. I'll know better once I receive and get to use it.

Nice price!!

Very nice!

The shipping was fast, although I couldn't get it the first day because they require signature for delivery. I guess it's an added safety measure. Thank you! Will shop buy from again!

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