SKU: 58721302130

15-23 S550 Mustang Rear XS3 Extreme Street Brake Kit

Sale price$567.00 Regular price$630.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

15-23 S550 Mustang Rear XS3 Extreme Street Brake Kit15 23 S550 Mustang Rear XS3 Extreme Street Performance 12. 19" Brake Kit Kit Instructions: Click here Read Before Installing: Click Here Video Install: Click Here ** Saves 30lbs over the factory rear brakes** Built with over 30 years of heritage in racing, TBM Brakes introduces its first purpose built street performance brake kit, the XS3 series featuring a 12. 19" vented rotor. Designed to be the bridge between our lightweight single thickness steel

15-23 S550 Mustang Rear XS3 Extreme Street Performance 12.19" Brake Kit 

Kit Instructions: Click here

Read Before InstallingClick Here

Video Install: Click Here

** Saves 30lbs over the factory rear brakes**

Built with over 30 years of heritage in racing, TBM Brakes introduces its first purpose built street performance brake kit, the XS3 series featuring a 12.19" vented rotor. Designed to be the bridge between our lightweight single thickness steel racing brakes and the large diameter rotor street performance brakes commonly seen in late model vehicles while providing incredible stopping power.

This brake kit was specifically designed to give the ability to run smaller diameter / factory size wheels without sacrificing braking potential. We even found this kit able to work with many steel factory 15" wheels as well as drag racing wheels.

Note: These will not clear the inner bead lock of a 15" beadlock drag racing wheel

Note: These only fit stock knuckle assemblies

**Modification to the rear knuckle is required**

Features:

  • Race Inspired XS3 4 Piston Caliper
  • Billet housings machined from solid 6061 Aluminum Alloy
  • Crossflow caliper design eliminates external tubes, and promotes equal pressure to piston distribution 
  • (4) 1.75" OD pistons per caliper deliver exceptional stopping power and pedal feedback
  • Two Part Durable Powder coated Calipers (choose color in options)
    • Race Red
    • Satin Blue Metallic
    • Velocity Yellow
    • Gunmetal Gray
    • Onyx Black
  • Black Anodized Brackets, Hats
  • Dark Zinc Plated rotors offer corrosion resistance before and after installation (please note rotor color can vary due to process)
  • Billet CNC Machined 304 Stainless Steel Pistons
  • Unique Cross flow fluid design for smoother operation
  • 12 point hardware
  • Race derived caliper design provides excellent stopping and better pedal feel
  • Made in the USA in our Bradenton, FL location!

Weight: 

Included:

  • (1) 12.19" vented rotors 3-121981087-1
  • (1) 12.19" vented rotors 3-121981087-2
  • (2) Billet Aluminum brake hat 205-0007BL
  • (2) XS3 4 Piston Caliper (Choose color below)
  • (1) Caliper Bracket 17-0075-1
  • (1) Caliper Bracket 17-0075-2
  • Complete Set of Pads 6-0002HPS
  • Hardware Kit 011-0340

Watch Install Video Here

For Max OD Reference of this kit for barrel fitment see below

Innovative caliper with class leading stopping power!

The XS3 Extreme Street caliper is an innovative new design built off principles and engineering from our line of racing calipers. This all billet caliper provides ultimate in strength for a better feel and performance. With a stronger bridge strength and more rigid caliper than most aftermarket aluminum calipers we are able to provide larger clamping force to achieve the brake torque to stop your vehicle. Choose your choice of color in powdercoat. 

12.19" Slotted & Vented Rotor Balances Weight and Durability

Our cast vented and slotted 12.19" rotor was designed to balance weight, stopping power, cooling ability, and looks while keeping the ability to package with most factory and aftermarket wheels 15" and larger. These rotors are black plated to protect against rusting / corrosion and look good before first use and beyond.

Proven Brake Pad Technology:

Utilizing the Hawk Performance HPS Ferro Carbon compound, this brake pad strikes the perfect balance of stopping potential without bringing noisy brake pads and large amounts of brake dust into play.

Billet TBM Brake Hats

Our billet aluminum brake hats remove the weight of a steel center all in one rotor while allowing for minor adjustment of axle offset thanks to our unique stepped mounting design.

Note: We do not recommend the use of silicone based brake fluid with these calipers. Only use approved DOT3, DOT4, or DOT 5.1 brake fluid. We recommend using TBM Extreme 6 Fluid for best results.

To purchase TBM Extreme 6 DOT 5.1 fluid: CLICK HERE

These brakes perform and operate best at 6-800 psi brake pressure under normal braking pressure. The proper master cylinder and pedal ratio is essential to proper performance. Don't know how to calculate this? Give our team a call, we are happy to help! (800) 878-9274

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58721302130

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4.2 ★★★★★
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Product Reviews
K
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KW
Phoenix, US
★★★★★ 5
Awesome, Super Bright!!
Color: 4inch Combo Light
Awesome, Super Bright!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
M
Verified Purchase
M.C
Louisville, US
★★★★★ 4
Auxbeam FTW
Color: 4inch Flood Light, Color: 4inch Flood Light
Quality product at an affordable price. The pods have a good weight to them and the bracket feels sturdy. I don't recommend them if you're looking for a true yellow light, those covers suck . The drl and turn signal feature is really nice 👌🏼. Only bad thing i can say is that the hardware is starting to rust but thats an easy fix .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
L
Verified Purchase
lisa wren
Lake Worth, US
★★★★★ 5
Light the way
Color: 4inch Spot Light
Very bright. Reasonable easy install. Love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
B
Verified Purchase
Brian LeJeune
Los Angeles, US
★★★★★ 5
cheaper solution but not cheaper in build and functional quality
Color: 4.5inch Spot Light
Im normally a Rigid guy but these Auxbeam LED Pods are brighter than my Rigid. They from my opinion are at the same build quality as the main name brands but at 1/2 the cost..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
G
Verified Purchase
Grady McClain
Los Angeles, US
★★★★★ 3
Wanted some better quality.
Color: 4.5inch Combo Light, Color: 4.5inch Combo Light
Installed in October of last year and the DRL on one side already burnt out. Otherwise the light are really bright and work well. They are very focused.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026

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