Will this Impreza WRX rear big brake kit clear my wheels?

Clearance depends on wheel design, not just diameter. This kit runs 332mm x 30mm rotors and the Endless Racing MONO4 caliper is sized for wheels from 15 inches. Endless publishes wheel clearance data for its kits; contact Bulletproof Automotive with your wheel specs before ordering and we will confirm fitment.

What is included in the Endless 1913090 kit?

The kit includes two Endless Racing MONO4 calipers, a brake pad set, two caliper mounting brackets, two 332mm x 30mm three-piece rotors, and two brake lines. It is a complete rear-axle system for the Subaru Impreza WRX STI GRB *Brembo PCD114.3 under one part number.

Can I run this rear kit with the factory front brakes?

The Endless Racing MONO4 rear kit installs independently, and Endless offers matching front systems for most applications. Most builds upgrade the front axle first or together with the rear, since the front carries the majority of braking load. Contact Bulletproof Automotive for a matched front and rear setup.

What pad compounds work with the Endless Racing MONO4 calipers?

The Endless Racing MONO4 runs 18mm-thick pads in the RCP146 / RCP153 shapes. Endless supports its TR, MX72, MX72 Plus compounds in this caliper, so the same impreza wrx rear big brake kit covers street driving through track use on a pad change.

Is this kit a direct bolt-on?

Yes. Part number 1913090 ships with mounting brackets and brake lines for the 2008-2012 Subaru Impreza WRX STI GRB *Brembo PCD114.3 rear axle, so the kit bolts on without fabrication. Bed the pads in dry conditions after installation to reach full performance.

Part number 1913090 is sold as one complete rear brake kit covering both rear corners: calipers, rotors, pads, brackets, and lines, priced and shipped as a single system.

Description

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Description

Endless Racing MONO4 Rear Big Brake Kit with 332mm 3-Piece Rotors for Subaru Impreza WRX STI GRB *Brembo PCD114.3 [1913090]

The Endless Racing MONO4 is a complete Impreza WRX rear big brake kit for the 2008-2012 Subaru Impreza WRX STI GRB *Brembo PCD114.3, pairing forged monobloc four-piston calipers with 332mm x 30mm three-piece slit rotors, performance pads, caliper mounting brackets, and brake lines for the rear axle. Endless machines the Racing MONO4 from a single forged piece of aluminum, so there is no bolted joint to flex under pressure, and the finished caliper weighs 2,100g. The rotors carry the Endless slit face that keeps the pad surface clean and friction stable as heat builds. Every component is designed and manufactured in Japan by Endless. Supplied as a complete rear-axle kit in the Endless racing anodize caliper finish.

Features

Forged monobloc Endless Racing MONO4 calipers; a one-piece body with no bolted joint to flex under pressure
Slit rotor face continuously refreshes the pad surface and vents gas without the cracking risk of cross-drilled discs
Three-piece rotor construction reduces unsprung weight and manages heat across repeated hard stops
Complete single-axle system: calipers, pads, brackets, rotors, and lines under one part number
Direct bolt-on installation with the included mounting brackets
Machined to Endless production standards with surface accuracy held to 1/1000mm
A Impreza WRX rear big brake kit that completes a full Endless brake build

Specifications

Caliper: Endless Racing MONO4 (EC4605N), forged monobloc, four pistons
Piston Sizes: 34mm and 41mm pairs
Caliper Weight: 2,100g each
Caliper Finish: Endless racing anodize
Pads: 18mm thickness, RCP146 / RCP153 shapes
Supported Compounds: TR, MX72, MX72 Plus
Rotor Size: 332mm x 30mm
Rotor Construction: Three-piece, slit face
Minimum Wheel Size: 15 inch (verify by wheel design)
Kit Contents: Calipers (2); brake pad set; caliper mounting brackets (2); rotors (2); brake lines (2)
Part Number: 1913090 (Endless Japan reference ED5XGRB)
Position: Rear

Applications

Subaru Impreza WRX STI GRB *Brembo PCD114.3: 2008-2012

Notes

Verify wheel clearance before ordering; Endless publishes wheel clearance diagrams and Bulletproof Automotive will confirm fitment against your wheel specs.
Bed the pads in dry conditions; bedding in rain prevents the pads from reaching full performance.
This kit services the rear axle only; Endless offers matching front systems.
Sold as a complete rear brake kit (one axle, both corners).

Frequently Asked Questions

Will this Impreza WRX rear big brake kit clear my wheels? Clearance depends on wheel design, not just diameter. This kit runs 332mm x 30mm rotors and the Endless Racing MONO4 caliper is sized for wheels from 15 inches. Endless publishes wheel clearance data for its kits; contact Bulletproof Automotive with your wheel specs before ordering and we will confirm fitment.
What is included in the Endless 1913090 kit? The kit includes two Endless Racing MONO4 calipers, a brake pad set, two caliper mounting brackets, two 332mm x 30mm three-piece rotors, and two brake lines. It is a complete rear-axle system for the Subaru Impreza WRX STI GRB *Brembo PCD114.3 under one part number.
Can I run this rear kit with the factory front brakes? The Endless Racing MONO4 rear kit installs independently, and Endless offers matching front systems for most applications. Most builds upgrade the front axle first or together with the rear, since the front carries the majority of braking load. Contact Bulletproof Automotive for a matched front and rear setup.
What pad compounds work with the Endless Racing MONO4 calipers? The Endless Racing MONO4 runs 18mm-thick pads in the RCP146 / RCP153 shapes. Endless supports its TR, MX72, MX72 Plus compounds in this caliper, so the same impreza wrx rear big brake kit covers street driving through track use on a pad change.
Is this kit a direct bolt-on? Yes. Part number 1913090 ships with mounting brackets and brake lines for the 2008-2012 Subaru Impreza WRX STI GRB *Brembo PCD114.3 rear axle, so the kit bolts on without fabrication. Bed the pads in dry conditions after installation to reach full performance.
How is the kit sold? Part number 1913090 is sold as one complete rear brake kit covering both rear corners: calipers, rotors, pads, brackets, and lines, priced and shipped as a single system.

About Endless

Endless is a Japanese brake manufacturer that designs everything in-house and manufactures domestically in Japan, holding surface accuracy to 1/1000mm under strict quality control. The company developed its own laminated sintered wire-mesh backing plate and ceramic carbon rotors, and it proves its parts in competition, running its own factory motorsport program and supplying winning teams across Japanese and European racing. From pads and slit rotors to forged and monobloc calipers, brake fluid, and lines, Endless builds braking systems trusted on both street and circuit.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Endless Racing MONO4 Rear Big Brake Kit with 332mm 3-Piece Rotors for Subaru Impreza WRX STI GRB *Brembo PCD114.3 [1913090]

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Endless Racing MONO4 Rear Big Brake Kit with 332mm 3-Piece Rotors for Subaru Impreza WRX STI GRB *Brembo PCD114.3 [1913090]

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Endless

Reviews