Performance Front & Rear Scalloped Rotor Service Kit
- Mfg Part #
- 003281ECS02KT1
- ECS Part #
- ES#3183891
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Product Details
Reduce weight. Reduce heat. Reduce warping. Full Floating.
ECS Tuning engineered 2-Piece Tru-Float scalloped style rotors offer real world benefits that can be felt on both the street and track! Our 2-Piece Tru-Float rotors combine the advantages of weight savings and rapid heat dissipation to provide a rotor superior to stock while preventing warping and extending component life. All-around improvement in one performance minded package.
Kit Includes:
- Front 2-Piece Tru-Float scalloped Style Rotors (365x34) Left & Right
- Rear 2-Piece Tru-Float scalloped Style Rotors (330x22) Left & Right
- Stainless Steel Brake Rotor Sets Screws - 4
*We did not include new brake pads with this kit so that the end user can determine which pads will best suit their needs. Brake pads can be found under the Braking>Pads section under your vehicle.
Features include:
Weight savings: The RS5 ECS Front 2-Piece Tru-Float scalloped rotors weigh only 22.45 lb each, compared to the stock rotor at 23.25 lb. The reduced weight of a 2 piece rotor reduces unsprung weight and rotational inertia, improving suspension performance.
- The unique scalloped pattern further reduces weight at the outer most portion of the rotor, reducing both unsprung weight and more importantly the rotational inertia of the rotor, further improving acceleration and braking performance compared to a non-scalloped design.
- Lightweight, precision machined 6061-T6 aluminum hat hard anodized with an attractive matte black finish that is both durable and corrosion resistant.
Gray cast iron rings: High quality FC-30 cast iron with high a carbon content improves wear properties at elevated temperatures and has excellent thermal conductivity and vibration damping properties. Friction surfaces are precision ground to ensure perfectly parallel surfaces and improve pad bed in, and rotors are precision balanced for vibration free operation. Heat treating reduces the tendency for rotor cracking by reducing internal rotor stresses.
Durability: Non-friction ring surfaces, including internal vents, are painted to resist salt and other corrosives.
Tru-Float design:
- The full float design allows independent radial and lateral thermal expansion and movement. Both of these features reduce thermal stresses on the rotor due to uneven thermal loading under hard braking.
- The full float design conducts less heat in to the bearings due to reduced contact area between the rotor and the hat, improving bearing life.
- The radial expansion allows the ring to increase in diameter without being restrained by the hat, reducing the tendency to “cone” or distort toward the outer braking surface, improving pedal feel and pad wear characteristics
- The lateral float capability allows the rotor to self-center between the pads, improving pad wear and reducing drag. It also reduces the effects of pad knock back, which is the tendency of the rotor to push the pistons back in to the calipers due to wheel bearing deflection under extreme loading, resulting in a soft pedal and inconsistent braking. Reducing or eliminating knock back by allowing the rotor to float and self-center results in a more consistent pedal feel and braking
Improved cooling:
- ECS 2-Piece rotors feature side-specific directionally curved vanes which pump air through the rotor at a higher velocity, leading to consistent, rapid cooling on both sides equally.
- Conventional RS5 rotors are curved-vaned, but use the same rotor for both sides of the vehicle. This compromise inefficiently pumps air from the outer diameter to the inner diameter of one rotor, working against the natural centrifuge effect. This significantly reduces air flow and thermal conductivity on one side of the vehicle, resulting in uneven braking cooling and performance from side to side.
- Rotor rings feature 48 veins compared to 45 on the stock rotors and feature a whopping 55% increase in internal surface area to further improve cooling efficiency compared to the stock rotors.
Drilled and slotted: 2-Piece Tru-Float rotors are cross drilled to promote cross ventilation for improved cooling as well as slotted to clean brake pads and carry away water and brake dust. Cleaner brake pads result in faster, more consistent stopping. Drilled holes are chamfered while slots are machined with a ball end mill - both to prevent cracking that may be present on improperly machined rotors.
Manufacturing quality: Manufactured exclusively for ECS Tuning in an ISO 9001 certified facility
Ready for a replacement rotor set? ECS offers discounts on pairs of replacement rotors to the original customer or customers showing proof of ownership. Please contact the Sales Department for additional information.
- 8T0615601A
- 420615301D
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Audi | B8 RS5 | All | 4.2L | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Stainless Steel Brake Rotor Set Screw - Priced Each |
|
2 | YES | |
| Drilled & Slotted 365 Full Floating Scalloped Rotor LEFT |
|
1 | YES | |
| Drilled & Slotted 365 Full Floating Scalloped Rotor RIGHT |
|
1 | YES | |
| Drilled & Slotted 365 Full Floating Scalloped Rotor LEFT 330x22 |
|
1 | YES | |
| Drilled & Slotted 365 Full Floating Scalloped Rotor RIGHT 330x22 |
|
1 | 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!
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
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.
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.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
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.
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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