Front 2-Piece Scalloped Brake Rotors - Pair (350x34)
- Mfg Part #
- 023940ECS01KT
- ECS Part #
- ES#3559513
- Brand
-
Free Shipping
Product Details
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 direct fit 2-Piece Tru-Float rotors provide rapid heat dissipation for a rotor superior to stock that prevents warping and extends component life, weighing in at a mere 23.4 lbs each. All-around improvement in one performance minded package.
FEATURES:
o Weight savings: The B9 S4/S5 Front ECS 2-Piece scalloped rotors weigh only 23.4 lbs each, compared to the stock rotor at 27.8 lbs. The reduced weight of a 2 piece rotor reduces un-sprung weight and rotational inertia, improving braking and suspension performance.
o Corrosion resistant coated hardware
o Lightweight, precision machined 6061-T6 aluminum hat hard anodized with an attractive matte black finish that is both durable and corrosion resistant.
o The full float design allows independent radial thermal expansion and movement, reducing thermal stresses on the rotor due to uneven thermal loading under hard braking.
o 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.
o 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.
o Durability: Non-friction ring surfaces, including internal vents, are coated with a high temp paint to resist salt and other corrosives.
o Slotting reduces the effects of pad glazing that often results from extremely high temperatures by continually cleaning the pad surface, resulting in 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.
o Manufacturing quality: Manufactured exclusively for ECS Tuning in an ISO 9001 certified facility
IMPROVED COOLING:
o Heat convection (due to air flow) is considered the most important mode of heat dissipation in rotor design. The key to this is adequate air flow through the rotor.
o 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.
o The air velocity in curved vane rotors is higher than pillar-post rotors and straight vane rotors, and as such curved vane rotors have been shown to cool more effectively.
o Conventional B9 S4 front rotors have a pillar-post vane design which do not pump air through the rotor as effectively and as such have inferior cooling capacity in comparison.
o Drilled and slotted: ECS 2-Piece 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.
TESTING:
o ECS 2 piece rotors have been subjected to thousands of miles of hard street use and to the elements (including snow and salt) for years. They have also been subjected to scientific brutal stress testing on the track and brake dyno, performing countless high speed stops in quick succession. We have measured stopping distances and elevated rotor temperatures of over 1000*F for long sustained periods (to the point of rotor bluing and catching brake pads on fire), as well as subjecting rotors to careful post-test inspection for signs of irregular wear, warping, stress cracking, or any other signs of failure.
o Our rotors have proven themselves to be robust, demonstrating excellent wear characteristics, no warping, no thermal stress cracking, no signs of hot spots and minimal pad glazing.
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.
- 4M0615301AN
- b9
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Audi | B9 S4 | Quattro | 3.0T | Use vehicle selector to confirm fitment |
| Audi | B9 S5 | Quattro | 3.0T | Use vehicle selector to confirm fitment |
| Audi | B9 S5 | Quattro | 3.0T Sportback | Use vehicle selector to confirm fitment |
| Audi | B9 S5 | Quattro | 3.0T Cabriolet | Use vehicle selector to confirm fitment |
| Audi | B9 SQ5 | Quattro | 3.0T | Use vehicle selector to confirm fitment |
| Audi | B9 SQ5 Sportback | Quattro | 3.0T | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Front Cross Drilled & Slotted Full-Float Wave Rotor - Left |
|
1 | YES | |
| Front Cross Drilled & Slotted Full-Float Wave Rotor - Right |
|
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.
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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
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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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