SKU: 79720341744

StopTech Front 4 Piston ST-40 Big Brake Kit (355x32mm) - 2015+ WRX

Sale price$1709.46 Regular price$1899.40
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

StopTech Front 4 Piston ST-40 Big Brake Kit (355x32mm) - 2015+ WRXWith stiffer components and patented heat management technology, all StopTech High Performance Brake Kits provide shorter stopping distances, better brake modulation, firmer pedal feel and less brake fade for stronger, more reliable performance on and off the track. North Americas leading manufacturer and supplier of aftermarket brake and chassis components, has introduced front and rear StopTech Big Brake Kits for the 2015 Subaru WRX with stiffer

With stiffer components and patented heat management technology, all StopTech High Performance Brake Kits provide shorter stopping distances, better brake modulation, firmer pedal feel and less brake fade for stronger, more reliable performance on and off the track.

North America’s leading manufacturer and supplier of aftermarket brake and chassis components, has introduced front and rear StopTech® Big Brake Kits for the 2015 Subaru WRX with stiffer calipers, larger rotors, higher friction pads, stainless steel lines and application-specific mounting brackets and hardware. StopTech High Performance Big Brake Kits (BBK) offer significantly improved braking performance, feel and modulation over stock systems and are available in a variety of caliper color/rotor finish options.

In extensive track testing with professional drivers, the front-only and 4-wheel StopTech BBKs for the Subaru WRX ran significantly cooler than the stock components. Drivers experienced less fade, better pedal feel and easier modulation. They also noted improved handling and steering thanks to front brake components that weigh approximately 9 pounds less per corner than stock.

The FRONT StopTech Big Brake Kits for the 2015 Subaru WRX include a pair of drilled or slotted 355 x 32 mm StopTech 2-piece AeroRotors and four-piston StopTech ST-40 calipers, as well as mounting brackets, stainless steel lines and StopTech Street Performance brake pads.

The REAR StopTech Big Brake Kits for the 2015 Subaru WRX include a pair of drilled or slotted 345 x 28 mm StopTech 2-piece AeroRotors and two-piston StopTech ST-22 calipers, as well as mounting brackets, stainless steel lines and StopTech Street Performance brake pads.

StopTech Big Brake Kits Include

  • StopTech ST Calipers - stiffer, forged, differential-bore calipers with a patented bolt-in bridge that eases pad changes while increasing caliper stiffness
  • StopTech 2-piece AeroRotors - pre-assembled, directional iron rotor rings with patented AeroVane fin design and aluminum AeroHats for optimal cooling
  • StopTech Street Performance Brake Pads – Kevlar-like, para-aramid composite pads for aggressive street driving and occasional track day or autocross use
  • StopTech Stainless Steel Brake Lines - braided stainless steel shielded Teflon-like lines for less system compliance and greater durability
  • Mounting Brackets & Hardware – hard-anodized, billet aluminum mounting brackets with stainless steel studs and all of the necessary hardware for easy installation
  • The AP Racing designed Radi-CAL calipers are FORGED versus the major competitor's cast calipers. These FORGED calipers are 25% lighter and 20% stronger than cast calipers of the same size in the same performance category. The entire Radi-CAL system was created from the Radi-CAL system designed by AP Racing for Formula 1 and NASCAR.

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: 79720341744

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4.3 ★★★★★
Based on 28 reviews
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Charles C.
Fort Morgan, US
★★★★★ 5
Heavy chewers can't break these alone.
Style: 5 Pcs No Stuffing Basic
These toys are AWESOME! As long as you don't get tricked into playing tug of war with them, they will last a very long time (almost 2 months) with a heavy chewer that tears through most toys in a couple hours. The tug pressure rips a seam. Then, that portion is a goner. However, the rest of the toy stays intact.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
F
Verified Purchase
Fawn KB
Fort Morgan, US
★★★★★ 5
Well made & my dog LOVES them!
Style: 5 Pcs No Stuffing Basic
Great value for FIVE very cute and well made stuff-less toys with crinkly paper inside and TWO squeakers each. My dog loves playing with them! I have two in his toy box and put three up to save for later for backup if/when he destroys the first two. 😂 I love the cute and unique designs of the squirrel, donkey, fox, cow, and giraffe, too.
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Reviewed in the United States on April 29, 2026
P
Verified Purchase
pleasantly surprised
Natrona Heights, US
★★★★★ 4
temporary but effective
Style: 5 Pcs No Stuffing Basic
destroid in a week. She still loves the pieces. Bones are gone in a day. So worth it.
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Reviewed in the United States on February 7, 2026
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R
Dallas, US
★★★★★ 5
Fun to toss
Style: 5 Pcs No Stuffing Basic
I was ordering another brand but bought this by mistake. These are FABULOUS. Not made cheaply some over twelve inches. My 40 pound pointer loves throwing them up and catching them. WOW.
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Reviewed in the United States on May 28, 2026
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Verified Purchase
Design1774
Alexandria, US
★★★★★ 5
Dog LOVES these!
Style: 5 Pcs No Stuffing Basic
My dog LOVES these toys. They are just the right size, have 2 squeaky toys - one in head and one in tail, which drives him crazy in the best way. The unstructured center allows him to shake them wildly and catch them mid-air. I will buy these again.
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Reviewed in the United States on May 13, 2026

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