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Your Vehicle 2021 MINI Cooper SE 3 Door IB1

ECS Front/Rear 2-Piece Brake Rotors | Audi B9 S4/S5

ECS is proud to offer the only semi-floating two-piece performance brake rotor upgrades for your B9 S4/S5. Each rotor weighs more than four pounds less than the factory brake rotors, which offers better handling, shorter stopping distances, and better heat dissipation!

Upgrading to our rotors drops the unsprung weight at each wheel and make for an excellent performance upgrade to improve your driving experience while adding an increased measure of safety and confidence behind the wheel.


NEW from ECS!

Fits:
Audi B9 S4/S5 (2017+)

Front 2-Piece Brake Rotors - Pair (350x34)
Direct bolt-on replacement - 16% less weight!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3493799
Mfg#: 023938ECS01KT

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Availability:
In Stock
On SALE
$1052.99

This product was last offered at the strikethrough price on
06-13-2026

$1021.40 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Rear 2-Piece Brake Rotors - Pair (330x22)
Direct bolt-on replacement - 15% less weight!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3493800
Mfg#: 023944ECS01KT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE
$688.99

This product was last offered at the strikethrough price on
06-13-2026

$668.32 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Rear 2-Piece Scalloped Brake Rotors - Pair (330x22)
Direct bolt-on upgrade to Tru-Float scalloped style rotors. 20% less weight!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3520785
Mfg#: 023950ECS01KT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 32%
$1021.99

This product was last offered at the strikethrough price on
01-03-2026

$699.99 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit
Complete set of DOT-compliant lines for an improved pedal feel
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3491660
Mfg#: 024921ECS01KT

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Availability:
In Stock
$235.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
19" Wheel Spacer Flush Fit Kit - Black Bolts
Includes ECS spacers & Black bolts to obtain a flush look on your OE 19" wheels
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3240970
Mfg#: 023881ECS01KT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE
$271.99

This product was last offered at the strikethrough price on
06-13-2026

$263.83 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
19" Wheel Spacer Flush Fit Kit - Polished Bolts
Includes ECS spacers & Polished bolts to obtain a flush look on your OE 19" wheels
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3240972
Mfg#: 023881ECS02KT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
Back Ordered
Auto Notify
On SALE
$270.99

This product was last offered at the strikethrough price on
06-13-2026

$262.86 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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