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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4.7 ★★★★★
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NetherChicken
Los Angeles, US
★★★★★ 4
Looks fine at a glance but definitely budget
Color: Ivory, Size: Large
I picked this up in the ivory color and the overall design leans very old school, especially with the oversized front buttons. They look nice from a distance, but up close they feel a bit cheap. The pants are one of the better parts, with a comfortable fit and an elastic waistband, and the included tie is a nice touch. Fit seems generally accurate, though having a size chart would have helped. The material is where the cost really shows, with a coarse polyester exterior and a smoother inner lining that helps with comfort. It gets the job done if you need something affordable in a pinch, just don’t expect it to feel or look high end up close.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
O
Omniman
Lake Worth, US
★★★★★ 5
Great looking suit
This suit is very good looking. To me, it is hard to find a suit in a cream color like this, that actually looks good. This one pulled off the trick for me! The jacket is well made and if you look at the posted photos you will see that the hankie pocket is slightly slanted. That makes this suit a bit unique among others. It even comes with the Red Tie included! It is well made, great looking, fits right and feels great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
B
Brown Family
Houston, US
★★★★★ 1
Too Wide and Not Long Enough for Tall, Skinny Builds
I bought this for my 16-year-old son (he’s about 6’2” and very tall and slender with a normal pant size of 30" 34") to have something simple in his closet for school dances and occasional events. Gray felt versatile — something he could dress up or down without overthinking it. Sizing was the biggest issue for us. I ordered a men’s large because that’s typically what I buy him for sweat pants, work out pants and for the added length in shirts, but this suit was way too big through the waist and chest. For something labeled “slim fit,” it did not fit like a slim suit at all. The inseam measured at 31 inches, which is shorter than other suits we’ve purchased for him, and the size chart (which wasn’t available when I ordered) doesn’t even list inseam measurements at all — which really matters for tall, lean boys like mine. As far as construction, this feels more like an occasional-wear suit for a teenager than something a grown man would wear regularly. The jacket is lined, which is nice, and it includes extra buttons. But there were loose threads inside around the buttons and pockets, and some stitching — especially under the arm pit area it already looked like it could come apart with wear. The inside pocket material feels thin and not especially durable. The arm length itself was a great fit for my tall son, and even offered a little room for growth. The pants were similar. When I turned them inside out, I noticed loose threads where the seams meet, particularly at the crotch. The pocket lining material feels rough, and there is only 1 extra inch of fabric at the hem if you need additional length, where I am used to seeing 2 inches of material for adjustments. I noticed that my son wore his belt on his hips when he tried it on so he pant legs would look more of a normal length. Overall, this might work fine as a backup suit for someone who needs it once in a while and isn’t overly concerned with tailoring or long-term durability. But based on fit and construction, it’s not something I would purchase for my husband or for frequent wear.
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Reviewed in the United States on February 18, 2026
D
Dave Daves Seaward
Louisville, US
★★★★★ 2
I dislike the royal blue - I abhor the cheap, tacky buttons
I requested this product without being able to see the product photo or any information about it (beyond the title) because I requested a similarly-priced 3-piece suit on Amazon previously and that was a fine suit; it wasn't amazing, but it was decent. This is far worse and I don't think many people would feel good about spending the $75 on this. I would never wear this suit jacket in public because it would embarrass me due to the color and the buttons. I suppose the color is a subjective choice, and I like many shades of blue and have two blue suits. A dark blue would've been OK with me (preferable), or even a lighter blue could be OK I suppose - but this "royal blue" shade is nauseating to me, its as if its trying to be overly-vibrant. The buttons aren't just a problem because they're cheap plastic - their placement is reminiscent of a style of suit jackets I've only ever seen in history books or old period movies set in eras well over a century ago - nobody wears jackets like this anymore unless they're dressed in formal uniforms like police. The title says it could be for a prom? No, I would not ever wear it to a prom or suggest it as a suit anyone would wear to a prom. The pants are decent! This is why I'm giving it two stars. Initially I couldn't imagine wearing this suit in any way whatsoever but the pants fit well and have a very professional-looking crease right where it should be. The color is bad, but I'll keep it in the back of the closet for days when I have no other slacks appropriate for work that are clean. I greatly appreciate the elastic in the waistband - it has that new stretchy type which allowed me to fit into it without trouble even though someone of my weight otherwise wouldn't.
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Reviewed in the United States on February 7, 2026
S
Sesirrah
Natrona Heights, US
★★★★★ 3
It's nice enough, but nothing spectacular
This was definitely a gamble since there was no picture provided.... But, my husband needed a newer suit, so we took a chance. Well, it's green! Which is the last thing we expected lol. But, it's not terrible. My husband actually thinks he can do something with it. I'm disappointed because it's only a jacket, pants and tie- not a three piece with a vest like i thought I was getting. Also the fabric just isn't a great material. For $80, it's not great. I've gotten better for $20 from temu. However, it does fit very him very nicely. He's about 5 foot nine or ten, 185lb. If you're in a bind and need a suit in a hurry, this will certainly do just fine. Just know it's not luxury. Pictures are taken right out of the bag, not ironed or anything.
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Reviewed in the United States on February 7, 2026

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