KSport® BKSB040-443CBRP - ProComp Cross Drilled Rear Brake Kit (356mm (14"), 4 Piston, Cross Drilled, Standard Rotors, Race Pads, Black)

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KSport® - ProComp Cross Drilled Brake Kit with 4 Pistons Calipers
KSport® - ProComp Cross Drilled Brake Kit with 4 Pistons CalipersKSport® - ProComp 4 Pistons CaliperKSport® - ProComp Standard RotorKSport® - Race Brake PadsKSport® - Brake Kits ManualKSport® - Product FutureKSport Authorized Dealer
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KSport Accessories

ProComp Rear Brake Kit (BKSB040-443CBRP) by KSport®. Specifications: 356mm (14") Cross Drilled 2-Pc Rotors, 4 Piston Black Color Calipers with Race Pads. This is a complete brake upgrade kit designed to enhance braking power under sustained high-heat conditions. Includes replacement calipers, rotors, pads, brake lines, and related hardware. All calipers feature 1-piece construction from a solid billet of aircraft grade aluminum for light weight, unparalleled strength and freedom from corrosion along with aluminum pistons that provide better heat resistance and uncompromised operation. Rotors are available in multiple diameters with slotted or drilled configurations and feature a 2-piece design with an aluminum center for lower rotational mass, reduced warpage, and shorter stopping distances.

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  • KSport’s standard brake upgrade kit that includes replacement calipers, rotors, pads, brake lines, and related hardware
  • All components are designed for bolt-on replacement without modifications
  • See Product Options for rotor sizes and designs, brake pad choices, caliper choices, and color options
  • All calipers feature 1-piece construction from a solid billet of aluminum for light weight and unparalleled strength
  • Opposed-piston caliper design greatly improves pad grip and reduces uneven wear
  • Aluminum caliper pistons provide freedom from corrosion, better heat resistance, and lighter weight
  • Reinforced carbon steel caliper brackets allow these larger-than-OEM size calipers to bolt directly on to existing mounting points
  • All rotors feature 2-piece design with an aluminum center for lower rotational mass, quicker braking response, and shorter stopping distances
  • 2-piece design greatly reduces chance of rotor warpage through less restricted expansion/contraction of outer iron section
  • 11” and 12” rotors feature 6-piston front calipers with 2-piston rear calipers
  • 13” and 14” rotors feature 8-piston front calipers with 4-piston rear calipers
  • All caliper seals are heavy duty for sustained high-temperature racetrack use
  • 13” and 14” rotors offer option of full-floating design for better self-centering in the caliper that lowers brake drag and boosts performance
  • Stainless steel brake lines prevent expansion under high temperatures and pressures for faster pedal response
  • Slotted rotors are recommended for track use and feature grooves on rotor surface to wipe away heat, dust, and gases
  • Drilled rotors are recommended for daily street use and feature holes in rotor surface to wipe away heat, dust, and gases
  • For street use, choose Street pads with long-lasting, low-dust ceramic compound
  • 1-year manufacturer warranty

KSport offers sophisticated bolt-on brake upgrade kits with ProComp packages that require no vehicle modifications to install. If you’re looking to thoroughly revamp your brake system with all-new components which provide serious stopping power that doesn’t fade under hard use the way OEM equipment does, ProComp kits offer choices tailored for your intended use. No matter which one you select, you’ll get the benefits of decades of racetrack experience and engineering from KSport. All brake calipers are cut from one block of aluminum rather than being cast or welded together. This provides perfectly even thicknesses and strength over every part of the caliper block to eliminate weak spots which lead to fracturing, warpage, and failure over time. To build on the weight-reducing characteristics of the calipers, caliper pistons are also made from aluminum and protected with heavy-duty seals designed to handle racetrack temperatures. Better heat transferrance ensures pistons slide smoothly and evenly without drag, and aluminum construction ensures caliper operation remains uncompromised by corrosion over time. Additionally, an opposed-piston design ensures brake pad grip and wear remain consistent on both sides of the rotor.

All rotors are a 2-piece design to provide light weight, fade-free performance on the racetrack, effective grip during street racing and drifting, and comfortable, easy-to-use operation under normal driving conditions. Lightweight center sections crafted from 6061-T6 aircraft-grade aluminum give you the benefit of lower rotational mass – making wheels easier to stop, and giving you the instant snap of brake response that’s proper for high performance driving. Because the outer section of the 2-piece rotor can expand and contract independently from the center section, chances of the entire rotor warping due to heat buildup are greatly reduced. And since aluminum is a better conductor of heat, the center sections serve as effective heat sinks by passing heat away faster to the air and to the hub assembly. Combined, these two factors give them a much longer service life than traditional 1-piece rotors. For the serious racetrack driver that’s mindful of avoiding temperature buildup which causes brake fluid boiling and pedal fade, KSport 13” and 14” rotors are available with a “full floating” design. Such a layout features an outer section designed to shift slightly as needed. Better self-centering in the caliper lowers brake drag and boosts performance through more even application.

Rotors are also available in “Street” applications with cross-drilled holes in the outer section to provide supremely effective management of heat, dust, and gasses that build up during aggressive driving. These drilled rotors are best matched to low-dust, long-life “Street” ceramic pads that function most effectively in the 194 – 1,022 degree Fahrenheit range typically reached on the street. For heavier-duty track use, KSport recommends rotors in slotted form for more solidity along with “Race” pads that function most effectively in the 482 – 1,472 degree Fahrenheit range reached during racing.

Founded in 2003 in Arizona, KSport USA Suspension Company has risen to prominence by producing high-performance suspension and brake system upgrades that provide winning results without breaking apart or breaking your wallet. The consistent high level of sophistication and quality KSport bakes into every product has earned them respect among all classes of racetrack drivers across the globe. As a premiere worldwide producer respected throughout the industry today, KSport has been recognized with TUV/ISO 9001:2008 certification for best business practices. CARiD is proud to offer the best values you’ll find on a full range of KSport coilovers, lowering springs, air suspension kits, control arms, brake upgrade packages, and much more designed to enhance performance and handling on the track and on the street.

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Warranty Information

Find out everything you need to know about the product warranty

All products sold are subject to the following warranty:

Autoline Industries warrants the shock absorbers and steering stabilizers to the original retail consumer against defects and workmanship when used on light truck and car applications under normal operating conditions. This warranty does not apply to shocks and steering stabilizers that have been improperly installed.

KSport warranty does not cover shock absorbers that are to be used in racing applications. Exterior finish on all K-Sport products is not considered a valid warrantee; consumers are responsible for the maintenance of paint and or chrome or plated finish.

Shock Boots are also excluded from any type of warrantee. ALL SHOCK BOOTS should be removed prior to returning to the Distributor from which the product was originally purchased. Rusted shafts will also be denied as a warrantee claim; consumers are responsible for the upkeep and maintenance of the chrome rods.

The consumer will be responsible for the removal and freight costs both to and from the Distributor from which the product was originally purchased. Proof of purchase is mandatory in order to receive warrantee replacement; original invoice from the Distributor from which the product was purchased must accompany the product in question for warrantee.

Autoline Industries or Autoline Industries distributor has the right to refuse a warrantee claim if procedures are not met by the original consumer. All returns must have an R.M.A. approval from Autoline Industries prior to shipping direct to the Autoline Industries facility. Exclusions from this warranty are sales outside of the United States, the finish, dents, rust, or any condition caused by abnormal use or neglect.

The loss of use of product, loss of time, inconvenience, commercial loss or damages is not covered. Autoline Industries reserves the right to change, modify, or discontinue the design of any products previously manufactured without assuming any obligation to the consumer. Any consumer which qualifies for a replacement of said discontinued product will only be allowed to receive new product which replaces the discontinued. KSport is not responsible for a pair of any product, if a single product has an issue.

Autoline Industries reserves the right to refuse any and all warrantee claims from any Distributor which has not purchased the original K-Sport product directly from Autoline Industries. Autoline Industries also reserves the right to refuse any Return Goods Authorization of said merchandise in which it is believed to be fraudulent or distressed merchandise not purchased originally from Autoline Industries.

This warrantee does not apply to any K-Sport product which has been modified, customized, painted, dented, rusted or improperly installed.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is compatible with 6 vehicle(s)
Year Make Model Fitment Notes:
2007 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
2006 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
2005 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
2004 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
2003 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
2002 Subaru WRX
  • Fits Models With 290mm (11.42") OE Front Rotor.
KSport® - ProComp Cross Drilled Brake Kit with 4 Pistons CalipersKSport® BKSB040-443CBRP - ProComp Cross Drilled...    $2,287.50
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