Slotted rotor style referenceSpecial order · Estimated lead time: typically 2-4 weeks
05-11 Porsche 997 - Rear 4 Piston Big Brake Kit w/ 14 in. Slotted Rotors - Dualcomp
Choose year, make and model to confirm this application-specific product fits — you can add it to your cart either way.
Verify fitment- Two 4-piston Dualcomp calipers (rear axle)
- Two 14 in two-piece slotted rotors with aluminum center bells
- street brake pads
- Stainless-steel braided brake lines
- CNC-machined caliper mounting brackets and hardware
- Hydraulic handbrake caliper circuit (see the series page)
Approved application: 2005–2011 Porsche 997 · C4S model
Choose an available option for each required item to enable Add to cart: Choose Caliper Color, Street or Race Pads, Center Bell Upgrades. Options marked “Contact for quote” require a KSport quote and cannot be added directly.
- Ships from Mesa, AZ
- 12-month limited warranty
- Special order: typically 2-4 weeks
Specifications — BKPO030-445SO
Product details
The all new Ksport Dualcomp Porsche 997 Big Brake Kit is the ultimate all-in-one Dual Caliper solution. Designed with Drifting and Rally Racing in mind, the Dualcomp system utilizes a single 4 Pot caliper, with 2 pots used for the foot brake and 2 pots used for the handbrake. Each runs independent from the other on its own system.
The Dualcomp Big Brake systems are designed for easy installation with minimal tools required in most applications. Kits come standard with everything needed for installation, including: Calipers, Floating Brake Disc, Brake Pads, Handbrake and all required hardware. For those looking for a brake kit that has been tested and proven to perform on the Rally Racing or Drift Circuits, the Dualcomp Porsche 997 Big Brake Kit is the ultimate choice.
This Big Brake Kit is Formula Drift legal and is appropriate for 18" wheels and above.
Lightweight Forged One-Piece Caliper
Our extremely lightweight forged one-piece calipers feature 1-piece construction from a solid billet of aerospace quality 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. Caliper pistons are made from aluminum and protected with heavy-duty seals designed to handle racetrack temperatures. Better heat transference 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. High Temperature Seals, Titanium Brake Pad Retainer Clips and Stainless-Steel Brake Pad Wear Plates are also standard on each Caliper design in the Dualcomp Porsche 997 Big Brake Kit.
Two-Piece Rotor Design
All Dualcomp Big Brake systems feature two-piece rotors to provide light weight, fade-free performance and effective grip on the racetrack and comfortable, easy-to-use operation under normal driving conditions. The rotor design is extremely lightweight when compared to OEM one-piece rotors, commonly weighing up to 50% less than OEM rotors of the same size. 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 two-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 one-piece rotors. Every rotor is always heat treated and balanced before shipment for the best performance. Since Cross Drilled rotors run cooler than slotted, we recommend them for daily driven vehicles. For vehicles that will be seeing more track use than daily driving, we recommend Slotted Rotors.
Cross Drilled Rotors
We recommend Cross Drilled rotors for daily driven vehicles since they tend to run cooler than slotted. Both rotor types have increased “bite” over stock and continuously clean and refresh the pad surface.
Slotted Rotors
Slotted rotors feature grooves on the rotor surface to wipe away heat, dust, and gases. We recommend slotted rotors for vehicles that will be seeing more track use.
Rear 4 Pot Calipers
The Dualcomp Big Brake System utilizes a single 4 Pot Caliper. 2 Pots are used for the foot brake and 2 Pots are used for the handbrake with each running independently from the other on its own system.
Polished Titanium Handbrake
The Dualcomp Big Brake System includes a polished Titanium handbrake cylinder and lever. Not only does the polished Titanium increase the look and feel of the handbrake but also helps control driving movement.
Carbon Steel Caliper Brackets
Each Dualcomp Big Brake kit comes with CNC machined Carbon Steel caliper brackets. Due to our calipers being much larger than OEM, these brackets help the system bolt right up to your OEM caliper bracket location.
Two-Piece Rotors
All our Dualcomp brake systems feature extremely lightweight two-piece rotors. It is common for our rotors to weigh up to 50% less than OEM rotors of the same size.
Stainless Steel Brake Lines
D.O.T compliant stainless-steel braided brake lines are standard in all our brake kits. The Stainless-Steel brake lines stop expansion under pressure, provide a quicker pedal response, and have a firmer pedal feel over stock rubber lines.
SC5 Street Pads Included
The NAOC Ceramic pads give optimal braking performance under street and occasional track conditions. The pads reduce the amount of brake dust by 50% or more when compared to race pads and greatly reduce the amount of noise and wear on the rotor. Optimal operating temperatures between 194°F – 1022°F for fast warm up under normal driving conditions. Average coefficient of friction is between .46 and .53.
Upgrade Available to RCI Race Pads
SC5 Street Pads are standard equipment, however, the option to upgrade to RCI Race Pads is available. These Carbon Metallic race pads give you the best stopping power under extreme track conditions. Optimal operating temperatures are between 482°F – 1472°F. RCI Race Pads not recommended for street use due to the high working temperature needed for optimal performance.
Custom Caliper Color Options
Brake calipers come standard in painted colors such as Orange, Red, Black and Yellow. There is also an option to upgrade to premium high polish finishes in Silver, Gold and Titanium as well as Glassy/Hard Anodized Colors. Over 20,000 custom color finishes are also available for an additional fee leaving the options nearly limitless.
Center Bell Customization
Options to upgrade to a Titanium Center Bell and Hardware or Twin Color Anodized Center Bell are available for further customization of your brake system.
12 Month Limited Warranty
All Ksport Big Brake Kits come standard with a 12-month warranty which covers manufacturer defects.
Easy Installation
The Ksport Dualcomp Big Brake system offers a sophisticated bolt-on brake upgrade that is easy to install. Minimal tools needed and no vehicle modifications required in most applications. View Installation Instructions.
Standard Kit Includes:
- (2) Forged, Monoblock Aluminum Calipers
- (2) Lightweight Two-Piece Rotors, Slotted or Drilled
- (1) Set of SC5 Street Brake Pads
- (2) Stainless Steel Brake Lines
- All required mounting components and hardware (Brackets, Bolts, Etc.)
- Owners Manual
Supported features
Two pistons serve the foot brake and two serve the handbrake, each running independently on its own system.
Extremely lightweight two-piece rotors — commonly up to 50% lighter than OEM rotors of the same size.
A polished titanium handbrake cylinder and lever for feel, appearance, and control.
CNC-machined carbon steel brackets let the larger caliper bolt to the OEM caliper bracket location.
Cross-drilled rotors run cooler for daily-driven vehicles; slotted rotors are recommended for more track use.
Standard painted orange, red, black, and yellow; premium high-polish silver, gold, and titanium; glassy and hard-anodized finishes; over 20,000 custom colors on request.
Application details
Choices for this kit
This part number ships with slotted rotors. Slotted suits track use; the cross-drilled version of this kit suits daily driving. Both versions are listed on the Dualcomp page.
Painted KSport orange, race red, caution yellow or jet black at no extra charge. Premium high-polish, glassy and hard-anodized finishes cost extra.
Street pads are standard; race pads, titanium or twin-colour anodized center bells are optional upgrades.
Choose the caliper finish, pads and center-bell configuration above. Every selection and any extra charge is shown before Add to Cart and saved with the order. Contact KSport for a custom color quote.
Installation
Bolt-on installation with the supplied brackets; no vehicle modification on most applications. After fitting, bed the pads in: on a clear road, ten light-to-medium stops from 30–45 mph, three seconds each, at least a quarter mile apart. Some noise before the brakes warm up is normal for big brake kits.
Brake system support and bed-in procedureWarranty & service
12-month limited warranty to the original purchaser against defects in materials and workmanship. Racing use, exterior finish and improperly installed or modified parts are not covered; keep your original invoice for any claim. Small surface cracks on cross-drilled rotors are normal wear and not a defect. Replacement pads, rotors, lines and hardware are sold individually.
Warranty terms and service requests