SKU: 80481258693

ENDLESS RACING MONO4 FRONT PERFORMANCE BRAKE SYSTEM FOR VA SUBARU IMPREZA WRX STI

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Description

ENDLESS RACING MONO4 FRONT PERFORMANCE BRAKE SYSTEM FOR VA SUBARU IMPREZA WRX STIENDLESS RACING MONO4 FRONT PERFORMANCE BRAKE SYSTEM FOR VA SUBARU IMPREZA WRX STI 4POT caliper version of forged and molded Monobloc Calipers. Conducting many tests in pursuit of reduced weight, durability, radiation, etc., Endless reviewed the shape of the details time and again before achieving perfection. They also enabled installation of wheels from 15 inches as well as increasing installable wheels. Specifications Weight : 2100g Size : 141mm x

ENDLESS RACING MONO4 FRONT PERFORMANCE BRAKE SYSTEM FOR VA SUBARU IMPREZA WRX STI

4POT caliper version of forged and molded Monobloc Calipers. Conducting many tests in pursuit of reduced weight, durability, radiation, etc., Endless reviewed the shape of the details time and again before achieving perfection. They also enabled installation of wheels from 15 inches as well as increasing installable wheels.

Specifications

  • Weight : 2100g
  • Size : 141mm x 72.5mm x 270mm
  • Compatible Rotor Diameter : φ300mm – φ355mm
  • Std Color of Kit : Racing Anodize
  • Std Compound for Kit : Type R / MX72 / MX72-Plus
  • Compatible Wheel Size : 15″

For racing, rally or street, Endless only uses the highest quality materials and design to achieve the best performance possible. These calipers will cope in the toughest of conditions without flexing or losing accuracy. Combine the calipers with RF650 Racing Super Fluid for optimum performance. Your pads will be applied and released with great precision and reliability.

FORGED MONOBLOC CALIPER BODY

Monobloc Calipers forged and molded through several thousand tons of pressure. 4 years after its conception and 1 year after the completed prototype it was entered into test races repeatedly and changed its specifications while also obtaining a body that is sufficiently light and hard to compete in races. The processing of the highly difficult piston cylinder was cleared using advanced special technology. The finished body was completed using an ultra-hard anodized aluminum. It is the final product of the technology created by Endless and its “never-ending challenge” as it continues to focus on quality forging.

“E-SLIT” DOUBLE SHAVING EFFECT

The long slit which draws gentle curves and the E slit which runs above the long slit are what make E-Slit Rotor impressive. The pad is constantly kept in optimal shape through the double shading effect demonstrated by the long slit, which gently carves the pad, and the E Slit, which gives strong brake force, providing further improvement of brake force. When the long slit on the rotor surface side disappears and the letter E floats up it is about time for replacement.

Also, even during the period of use, the brake rotor may be damaged due to aging deterioration such as rust and corrosion, so it is recommended to replace it at least once every two years.

Specifications

  • Material : Steel with Special Carbon
  • 1-Piece Design
  • Slit Shape : E-Slit
  • Special Heat Treatment

E-Slit

  • The E-Slit rotor consists of the narrow curved slit incorporated with 4 smaller E-Slits. The smoother shaving of the pad by the long curved slit and the increased friction provided by the E-Slits maintain optimal brake pad condition at all times. The rotor material consists of a special carbon blend, an Endless original technology, facilitating stable mu-levels, decreasing heat cracks and extracting 100% of the brake pads performance. Slits are designed for optimal shaving.

Cost Effective, and More On So Many Levels

  • Endless Steel discs are more cost effective, and offer a wider range of performance options. Many drivers and racing teams prefer the feel and characteristics of Endless steel discs.

Special Heat Treatment Process

  • With prolonged hard driving, the rotor surface will expand and contract due to heat, causing fine cracks (heat cracks), and you will not be able to obtain appropriate friction. To prevent this, special heat treatment was performed in advance to stabilize the components of the rotor itself and significantly reduce heat cracks during hard driving. As a result, the life of the rotor has been extended, and it has become possible to use it for a long time with peace of mind.

Blue Rotor Hat Finish

  • The bell hat part is painted blue to aid in preventing corrosion resistance and also can be expected to have a dress-up effect.

ULTRA-HARD ALUMITE CALIPER BODY

Ultra-hard alumite is used for the caliper body of our monoblock series. A tough ram coat is used for the rotor bell housing. This makes it possible to significantly delay the discoloration of alumite even when used under high temperature conditions when driving on a circuit.

HARD ANODIZED FINISH

The finish is a hard anodizing, which is the preference under track conditions. When raw aluminum reacts with the oxygen in the air, a hard surface film develops on aluminum which prevents further degradation. The process is called oxidation, and you can think of it like rust. The anodizing process leverages this natural phenomenon, and takes it a step further to produce an extremely hard protective layer of aluminum oxide. The result is a finish that is far more appropriate for racetrack use. Anodizing creates a uniform surface that is much more abrasion resistant than paint or powder coat.

ABOUT BEDDING

Circuit-dedicated pads that emphasize high-temperature characteristics, in order to bring out the original performance, it is indispensable to perform the work called “bedding” in which heat is applied in advance before hard driving to make a hit.

Bedding is always done in the top categories SUPER GT, WRC and various races in Europe.

Before using semi-metal brake pads, proper bedding is required to stabilize high temperature performance and extend the life of the pads and rotors.

How to Bed

  • When driving on a circuit when a new product is installed, raise the rotor temperature to about 400 – 500° C while avoiding hard braking, and add atari. After that, if the temperature is lowered to 100° C or less by natural cooling, the process is completed.

KIT CONTENTS

  • Endless Racing Calipers (2)
  • Brake Pad Set
  • Caliper Mounting Brackets (2)
  • Large Diameter Brake Rotors (2) – 355mm x 32mm 2PC
  • Stainless Brake Lines (2)

FITMENT DETAILS

  • Fits Applied D

NOTES

  • It may not be possible to bring out the original performance of the brake pads when bedding in the rain. Bedding should be done in fine weather as much as possible.
  • Compatible wheels vary depending on the wheel brand and size.
  • This product uses an E-slit rotor.
  • Please note that there is no custom color setting for the Racing Monobloc series.
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: 80481258693

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Room112
New York, US
★★★★★ 5
Great for big dogs
Size: Medium, Number of Items: 1
Our pup is now 15 months old (nearly 110 lb and still growing). We got this ball when he was 3 or 4 months old. GOODS - - Our pup fetches with extreme drive, and the rope helps him quickly snatch the ball off the ground (versus a tennis ball, in which we are worried he will go head over heels at times) - Our pup also loves to play fetch in the water, and this ball floats great and again, the rope gives another point to bite onto - The yellow color is easy to see, even in grass - Our pup typically fetches the ball, and leaves the rope mostly out of his mouth. So, throwing the ball doesn't result in saliva-covered hands - It's pretty easy to throw the ball 50', and possible to throw it 100' - It doesn't roll/bounce, so if you are for example playing fetch on your front lawn and are concerned with a tennis ball rolling into the street, this one alleviates that issue - Our pup is spoiled and has several balls. This is absolutely his go to ball. We have woken up in the morning before to see him standing next to the bed with the ball in his mouth, asking us to get up and play. BADS - - Occasionally when he goes to fetch it, he will step on the rope as he tries to pull up on the ball. - We have gotten this ball stuck in trees multiple times. In fact, there is one stuck on the roof of our church from playing fetch on the lawn there. :-/ Not a fault of the ball, but if you start whipping it around like nunchucks, it might not go where you want. - The near max you can through this ball is 100'. And since it doesn't roll/bounce, throw distance is throttled. We often play fetch in a local baseball field, and have no issue wearing him out with this ball. However, if you are planning on throwing a ball the distance of half a football field, you might want to consider something else. SIZE - - We purchased both the medium and the large. Even though our pup is huge and can fit a soccer ball in his mouth, he still prefers the medium. It's easier for him to get in his mouth and breath while running back. The medium is the size of an orange, whereas the large is the size of a grapefruit. DURABILITY - - We have gone through about 4 of these balls, BUT this is because we lost 3 of them. We believe he dropped one out of the car window while we were driving, one is on the roof of our church, and I forget about the other one. On the first one we had, the stitching behind the black tape was down to a few threads after about 5 months. Given duration we use these balls (every day) and the joy he gets from them, I feel the durability is good for the price. - We do play tug with the ball at times, and no issues there Enjoy!
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Reviewed in the United States on December 17, 2013
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Greg
Boise, US
★★★★★ 3
Good but better options out there.
Good ball, but is a cheaper version of the Foamster sold online. The rope is cheap and comes apart, and can be abrasive to a dogs mouth. The Foamster uses a higher quality ball and are more durable and use grippy biothane straps rather than cheap rope. They are also made to order in the USA with lots of fun colors. Worth the extra money if your dog likes these balls.
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Reviewed in the United States on February 10, 2025
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Kristen
Los Angeles, US
★★★★★ 5
Fun toy for fetch
Size: Medium, Number of Items: 1
Daisy loves this toy. I found it from her dog trainer, and it makes rewarding her with a quick tug of war and fetch really easy. Also it’s shockingly durable. It looks like foam, but she has not destroyed this one.
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Reviewed in the United States on November 11, 2025
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seafan
Birmingham, US
★★★★★ 5
Sturdy and soft like hiking on clouds
Size: Large, Color: Color Mix
I am in love with these socks! In fact I've reordered five more times and have told my hiking friends about them, and they've ordered them now, too. We all love them. This is an excellent price for a 70% Merino wool sock. They wick away moisture & keep your feet nice and dry and comfortable in your boots. They're very cushiony yet your feet do not overheat. I bought these for the gym and for hiking. I actually hike about a hundred miles a month so I can tell you these socks go through a lot with me! The ankle cut socks are perfect for both my trail runners and my actual low ankle boots. The arch support keeps the sock firm on my foot and does not allow the sock to bunch up down towards the toe. The Merino wool helps to control moisture and my feet do not stink after a 6-7 mile hike. And oh my gosh they are so soft! It's like walking on clouds. I've had no issues with holes in the socks and will definitely update later if I do. I highly recommend these socks and tell your friends about them too
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Reviewed in the United States on April 16, 2026
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christopher laughlin
Charlottesville, US
★★★★★ 5
Best socks ever! Wool blend keeps my feet cushioned.
Size: Large, Color: Color Mix
Anyone complaining about it not feeling like real wool didn't read the description, it says wool blend. They are the most comfiest socks I have ever purchased! They fit well they keep my feet warm . They don't sweat in hot weather. I almost forgot I had them on this evening. Best socks ever!!!!
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Reviewed in the United States on May 8, 2026

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