Endless 6POT / S4R Front & Rear Performance Brake System for GRB Subaru Impreza WRX STi



2008-2014 Subaru Impreza WRX STi – Endless 6POT  S4R Front & Rear Performance Brake System

STOCK STATUS: Special Order
These items are typically not in stock and either made-to-order or special order from the manufacturer. After you order we will confirm the estimated lead time and other order details. If you have a specific deadline to receive this order please talk to us before placing your order to ensure that the manufacturer can meet your expectations.
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Endless 6POT / S4R Front & Rear Performance Brake System for GRB Subaru Impreza WRX STi

The Endless 6POT/S4R Front & Rear Performance Brake System for Subaru Impreza WRX STi Hatchback is an ultimate upgrade for those who demand raceinspired braking performance. This system includes fourpiston calipers and twopiece rotors for superior stopping power and improved fade resistance. The calipers are constructed from lightweight aluminum for reduced unsprung weight and improved brake cooling. The rotors feature a crossdrilled, slotted, and vented design to increase heat dissipation, reduce brake fade, and provide superior performance in wet conditions. This braking system is designed to provide superior stopping power and improved handling, making it the perfect upgrade for serious track and street performance enthusiasts.

The 6POT caliper ensures robust braking power even in cars that are highly modified with a powerful engine, and is the optimal choice for street performance sports cars fitted with a powerful engine.

For their racing, rally, and street applications, Endless ensures maximum performance from their calipers by only using the highest grade materials and designs. Their products have undergone stringent tests to guarantee that they can endure even the toughest of situations without compromising precision or dependability. To get the most out of your calipers, pair them with RF650 Racing Super Fluid for superior control when braking, with your pads engaging and disengaging with accuracy and trustworthiness.


Endless has created a costeffective 4piston caliper that does not sacrifice braking power, even when it is situated at the rear of the vehicle. Competitors like Racing 4 are more expensive and are meant for users who have front brake calipers, but those on a budget can now rely on the more affordable Endless caliper kit. The caliper is built with a forged body, designed to be spacesaving yet maintain the dependability for which Endless is renowned.

Blue Anodized Finish

  • When aluminum is exposed to oxygen in the atmosphere, it begins to create a protective film on its outer layer. This is called oxidation, which is similar to corrosion. Anodizing takes this natural occurrence and strengthens it, forming a strong layer of aluminum oxide on its surface. This gives it a smoother and more durable finish, making it an appropriate choice for applications that require sliding tracks. Anodizing offers a more consistent finish that is more resistant to scratches than paint or powder coat.

“E-Slit” Double Shaving Effect

  • The ESlit Rotor is extraordinary, largely due to its lengthy slit, that delicately forms smooth curves, as well as the E slit located above it. The doubleshading effect produced by the combination of the long slit and E slit maintain the pad in topnotch quality. If only the letter E is visible and the long slit on the rotor has disappeared, it is a sign that the rotor needs to be swapped out.
  • It is recommended to change the brake rotor at least every two years, even if it appears to be functioning adequately, since rust and corrosion, as well as other signs of wear and tear, can cause it to weaken over time.

About Bedding

  • It is essential tobed circuitdedicated pads that are specially made to be heattolerant in order to get the most out of them. This refers to heating up the pads before subjecting them to prolonged, intense usage.
  • Competing at the highest level of motorsport, including SUPER GT, WRC, and other races across Europe, is a testament to the caliber of a professional racer.
  • It is essential to perform the appropriatebeddingin procedure prior to utilizing semimetallic brake pads in order to guarantee maximum high temperature performance and elongate the service life of the pads and rotors.

How to Bed

  • Before introducing a new part into a circuit, make sure to warm the rotor to a temperature between 400500° C, avoiding any sudden slowing down. Afterward, the atari can be put in and let the rotor cool to a temperature of 100° C or lower, completing the process.

E-Slit Rotors

  • Created with the user‘s needs in mind, the ESlit rotor boasts a lengthy curved slit plus an additional four smaller ESlits in order to give an incredibly soft shave. The long slit paired with the extra friction of the ESlits stops the brake pad from losing its shape. Manufactured using Endless exclusive carbonblend, this rotor allows for the highest mulevels, reducing the chance of heat cracks and ensuring the brake pads hold their best performance. Every detail of the ESlit rotor has been carefully thoughtout to guarantee the best shaving experience; its design is truly remarkable.

Cost Effective, and More On So Many Levels

  • Endless steel discs are widely used among racers and drivers due to their costeffectiveness and range of performance benefits. Furthermore, the sensation and features that come along with these discs make them even more attractive.

Special Heat Treatment Process

  • The regular and prolonged use of the rotor can cause a buildup of heat, potentially causing small cracks (heat cracks) due to the surface of the rotor expanding and contracting. To combat this, a pretreatment process to reinforce the rotor parts was conducted to lessen the chances of heat cracks when the rotor is used at higher speeds. This has increased the rotor‘s estimated lifespan, giving customers with more peace of mind when utilizing it for a prolonged period of time.

Blue Rotor Hat Finish

  • A fresh coat of blue paint has been applied to the bell to not only fend off corrosion, but to give it an aesthetically pleasing look.


  • 2008-2014 Subaru Impreza WRX STi – GRB

Rotor Specifications

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

Front Kit Specifications

  • Weight : 2050g
  • Size : 156mm x 79mm x 288.5mm
  • Compatible Rotor Diameter : φ320mm – φ370mm
  • Std Color of Kit : Blue Anodize
  • Std Compound for Kit : SSM / TR / MX72 / MX72PLUS
  • Compatible Wheel Size : 17″

Rear Kit Specifications

  • Weight : 2050g
  • Size : 135.2mm x 66.3mm x 234mm
  • Compatible Rotor Diameter : φ280mm – φ332mm
  • Std Color of Kit : Blue Anodize
  • Std Compound for Kit : SSM / TR / MX72 / MX72PLUS
  • Compatible Wheel Size : 17″

Kit Contents

  • Endless Racing Calipers (4)
  • Brake Pad Set – Front
  • Brake Pad Set – Rear
  • Caliper Mounting Brackets (4)
  • Large Diameter Brake Rotors (4) – 340mm x 30mm 1PC
  • Stainless Brake Lines (4)


  • In order for the brake pads to perform optimally, it is best to bed them in during dry, fine weather whenever possible. Unfortunately, it is not likely that the original performance level can be achieved if bedding in is attempted in the rain.
  • The specific type of wheel suitable for a particular application is determined by the brand and size of the wheel.
  • This product is equipped with an ESlit rotor as its standard feature.
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