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Your Vehicle BMW G11 740i xDrive B58 3.0L

Rear Big Brake Kit - Stage 1 - 2-Piece Solid Cross-Drilled & Slotted Rotors (308x9) - (NO LONGER AVAILABLE)

Add leverage to your rear brakes with this bolt on big brake kit!
10X Entries For Our 25th Anniversary Sweepstakes!

ECS
Mfg Part #
MK4S1RXS
ECS Part #
ES#803
Brand
ECS
Note:This product is no longer available.
Note: This product is no longer available.

Product Details

10X Entries For Our 25th Anniversary Sweepstakes!

ECS introduces our own in-house engineered complete Stage 1 braking solution. This bolt-on upgrade replaces your standard 232mmx9mm rotors with massive 308mmx9mm two-piece rotors. A larger diameter brake rotor increases braking force, much like a longer wrench will increase the torque applied to a stubborn bolt.

We then paired these rotors with black anodized brake bracket to move braking force away from the center of the axle, further increasing your braking leverage.

Each kit comes with

  • 2-piece 308mm ECS Tuning Cross-Drilled & Slotted Brake Rotors

  • Caliper carrier mounting brackets

  • Exact-Fit Stainless Rear Brake Lines with Brackets

  • Mounting hardware

 

We've included step-by-step installation instructions to make this upgrade a breeze. We recommend pairing up this great upgrade with a quality ECS Front Big Brake Kit for maximum stopping power

**Please NOTE: QTY 4 .50mm shims are included in each kit to accommodate for manufacturing tolerances in rear trailing beam mounting knuckle thicknesses. Use only if caliper carrier to rotor face tolerance is under ~1.0mm.**

This part does not have vehicle applications yet. For fitment verification, contact our sales team via 330-331-2003, Live Chat Text Us! , or [email protected].

Kit Contents

Description Brand Qty Lifetime
MK4 Stage 1R Brake Caliper Bracket ECS - Corporate Logo 2 YES
MK4 Stage 1 Drilled And Slotted Left Rear Rotor - (NO LONGER AVAILABLE) ECS - Corporate Logo 1 YES
MK4 Stage 1 Drilled And Slotted Right Rear Rotor ECS - Corporate Logo 1 YES
Brake Line Mounting Bracket – Upright ECS - Corporate Logo 2 YES
Plastic Nut - Priced Each Genuine MINI - Corporate Logo 6 YES
MKIV Stage 1 Rear BBK Brake Line - Left Side ECS - Corporate Logo 1 YES
MKIV Stage 1 Rear BBK Brake Line - Right Side ECS - Corporate Logo 1 YES
Brake Line Mounting Bracket � Low Profile ECS - Corporate Logo 4 YES
Type 18-8 Stainless Steel Round Shim 0.5mm Thick, 10mm ID, 16mm OD Bremmen Parts - Corporate Logo 4 YES
Caliper Carrier Bolt - Priced Each ECS - Corporate Logo 4 YES

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

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Return and Exchanges

Need to set up a return? Click here to begin: Return Process

All you need is your order number and email address.


New/Unused Product Returns

ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.

In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.

Refused Packages

Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.

Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Process

Return Process

ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!

Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.

Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.


All in store credit balances will expire after one year from the original purchase date.

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Shipping Policy

Free Shipping On Orders $49 & Up

Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.

Free Shipping

Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.


The policies listed above are subject to change at any time without notice.

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Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

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Why You Should Shop From ECS Tuning

ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.


Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.

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Cancellation Policy

At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.

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ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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