2005–2014 Ford Mustang R1-Redline Rear Disc Brake Kit with DS Rotors – Black – A550-21BLK-DS.
SKU- A550-21BLK-DS
Regular price $1,835.00Upgrade the rear brakes on your 2005–2014 Ford Mustang with an SSBC-USA R1-Redline rear disc brake kit. This direct-fit package pairs billet aluminum rear calipers in a black finish with matched dimple-drilled and slotted rear rotors for stronger street performance, improved brake balance, and a clean custom appearance.
Key Features
- R1-Redline billet aluminum rear calipers, black finish
- Matched dimple-drilled and slotted rear rotors
- Fixed-caliper design
- Direct-fit for compatible 2005–2014 Ford Mustang applications
- SSBC-USA part number A550-21BLK-DS
- SSBC-USA calipers are 100% Made in the USA
Why Upgrade
- Improved rear braking response for stronger street stopping confidence
- Better front-to-rear brake balance during spirited driving
- Improved heat management and brake consistency during repeated stops
What's Included
- Left and right R1-Redline billet aluminum rear calipers, black finish
- Matched dimple-drilled and slotted rear rotors
Vehicle Fitment
Fits select 2005–2014 Ford Mustang rear applications. Verify axle configuration, parking-brake compatibility, wheel clearance, and rotor compatibility before ordering.
✔ Fitment Confidence: Not sure about your axle configuration, wheel clearance, or rotor compatibility? Call our tech team at (716) 775-6700 before ordering so we can help confirm the correct application.
🚚 Shipping: This item is configured to order at our Elma, NY facility — production and configuration typically take 5–10 business days. Supply constraints can occasionally cause temporary delays beyond this window. Need an update on your order? Contact us at (716) 775-6700 or orders@ssbc-usa.com with your order number and we'll get you an answer right away. Your exact shipping cost is calculated at checkout based on your address.


