Slotted rotor style referenceSpecial order · Estimated lead time: typically 2-4 weeks
11-12 Infiniti M56 - Rear 4 Piston Big Brake Kit w/ 13 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 13 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)
One approved application: 2011–2012 Infiniti M56 · Y51 · RWD and AWD including sport 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 — BKIN300-435SO
Product details
A slotted 13 in Dualcomp rear kit is made for the 2011-2012 Infiniti M56 in the Y51 chassis, both RWD and AWD including sport models. Four-piston billet aluminum calipers clamp two 330 mm two-piece slotted rotors, and the slots help the face clear gas and debris when the rear brakes are used hard on a fast road.
This slotted Dualcomp rear build fits the Y51 M56 with four-piston calipers and 330 mm rotors, adding stainless braided lines and bracket hardware. Related applications are the M37 from 2011 to 2012 and the Q70 RWD from 2014 to 2018.
Confirm the rim clearance before ordering, because the 17 in or larger planning figure assumes about 4 in over the rotor. The stock master cylinder and ABS carry on, and the handbrake will no longer hold the car after this kit is installed.
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.
Compatible applications (3)
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 requestsOther published pages for MPN BKIN300-435SO
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.