Drilled rotor style referenceSpecial order · Estimated lead time: typically 2-4 weeks
14-18 Infiniti Q70 - Rear 4 Piston Big Brake Kit w/ 13 in. Drilled 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 cross-drilled 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: 2014–2018 Infiniti Q70 · RWD
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 — BKIN300-435CO
Product details
The rear Dualcomp kit for the 2014 to 2018 Infiniti Q70 RWD replaces the rear calipers with two four-piston units machined from one-piece billet aluminum. Each side clamps a 13 in two-piece cross-drilled rotor with an aluminum center bell, which gives the rear axle a complete braking package built around 13 in rotors.
The hydraulic layout is the detail to understand before you fit it. Two pistons in each caliper serve the foot brake and two serve the handbrake, each on its own independent system. The handbrake cylinder and lever are polished titanium, and carbon steel caliper brackets let the larger caliper bolt to the factory bracket location. The kit works with the OEM master cylinder and ABS.
Cross-drilled rotors suit daily driving, and this part number comes with them. The box includes street brake pads, stainless steel braided brake lines and CNC-machined mounting hardware. Plan on 17 in or larger wheels and check the barrel and spokes for clearance. The kit is also listed for the 2011 to 2012 Infiniti M37 and M56 with Y51 chassis, RWD and AWD including sport model, so confirm your own car with the year, make and model checker first.
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 cross-drilled rotors. Cross-drilled runs cooler and suits daily driving; the slotted version of this kit suits track use. 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 BKIN300-435CO
These page names share this MPN; they do not confirm fitment. Verify your vehicle before ordering.