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Audi S4 Most Popular Parts

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EA839 2.9T/3.0T Billet Oil Filter Housing - Black

ES#3504941 - 024354ECS01-01 - EA839 2.9T/3.0T Billet Oil Filter Housing - Black - Ditch the easily broken/stripped plastic oil filter cap for a durable billet upgrade - ECS - Audi

Ditch the easily broken/stripped plastic oil filter cap for a durable billet upgrade affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3504941
Mfg#:
024354ECS01-01
In Stock
ON SALE! SAVE 27%
$136.99

This product was last offered at the strikethrough price on
05-02-2026

$99.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear 2-Piece Scalloped Brake Rotor Kit - No Pads

ES#4056678 - 023940ecs02ktKT - Front & Rear 2-Piece Scalloped Brake Rotor Kit - No Pads - Direct bolt-on upgrade to Tru-Float scalloped style rotors. Up to 20% less weight! - ECS - Audi

Direct bolt-on upgrade to Tru-Float scalloped style rotors. Up to 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#:
4056678
Mfg#:
023940ECS02KTKT
In Stock
ON SALE! SAVE 39%
$2217.99

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

$1363.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 S4/S5 Pre-Facelift Luft-Technik Performance Supercharger Intercooler Kit - Without ADS

ES#4305066 - 025496ECS01KT2 - Audi B8 S4/S5 Pre-Facelift Luft-Technik Performance Supercharger Intercooler Kit - Without ADS - Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. - ECS - Audi

Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B8 Pre-Facelift Models Without ADS

Brand:
ECS - Corporate Logo
ES#:
4305066
Mfg#:
025496ECS01KT2
In Stock
ON SALE! SAVE 18%
$919.99

This product was last offered at the strikethrough price on
05-02-2026

$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mechatronics Repair Kit

ES#4755519 - 0B5398009F - Mechatronics Repair Kit - Includes the valve block wiring and speed sensor with cable - Bremmen Parts - Audi

Includes the valve block wiring and speed sensor with cable affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with 7-speed S-Tronic transmissions

Brand:
Bremmen Parts - Corporate Logo
ES#:
4755519
Mfg#:
0B5398009F
In Stock
ON SALE! SAVE 20%
$531.99

This product was last offered at the strikethrough price on
05-02-2026

$425.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RS4 Turbo Inlet Pipe Set

ES#2864575 - 034-145-P002 - RS4 Turbo Inlet Pipe Set - Finally, a readily available, affordable RS4 intake pipe solution - 034Motorsport - Audi

Finally, a readily available, affordable RS4 intake pipe solution affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864575
Mfg#:
034-145-P002
In Stock
$504.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Front Strut Brace - Audi B9 A4/A5/S4/S5/RS5

ES#3188267 - 019218ECS01 - Billet Aluminum Front Strut Brace - Audi B9 A4/A5/S4/S5/RS5 - Provides additional support to the strut towers for flex reduction to enhance your driving experience - ECS - Audi

Provides additional support to the strut towers for flex reduction to enhance your driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3188267
Mfg#:
019218ECS01
In Stock
ON SALE! SAVE 20%
$383.99

This product was last offered at the strikethrough price on
05-02-2026

$306.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm

ES#4005438 - 034-145-Z042 - 3.0 TFSI Supercharger Crank Pulley Upgrade - 190mm - Increase supercharger rotational speed to provide more boost to your engine - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*To be used with Stage 2 software - Stage 2+ software necessary if used in conjunction with a supercharger pulley upgrade*

Brand:
034Motorsport - Corporate Logo
ES#:
4005438
Mfg#:
034-145-Z042
Back Ordered
Auto Notify
$502.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#4818453 - 06E103547AH - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Bremmen Parts - Audi

Located beneath the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits from the 2013 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818453
Mfg#:
06E103547AH
In Stock
ON SALE! SAVE 20%
$135.99

This product was last offered at the strikethrough price on
05-02-2026

$108.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front 2-Piece Brake Rotors - Pair (350x34)

ES#3493799 - 023938ecs01KT - Front 2-Piece Brake Rotors - Pair (350x34) - Direct bolt-on replacement - 16% less weight! - ECS - Audi

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
In Stock
ON SALE!
$1032.99

This product was last offered at the strikethrough price on
05-02-2026

$1001.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Optima YELLOWTOP High Performance AGM Battery - H6

ES#3639387 - 9048-148 - Optima YELLOWTOP High Performance AGM Battery - H6 - Upgrade to the true dual purpose heavy duty battery with a longer life span - Optima - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade to the true dual purpose heavy duty battery with a longer life span affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Optima - Corporate Logo
ES#:
3639387
Mfg#:
9048-148
Ships in 3 Business Days
$468.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Billet Engine Oil Dipstick - Polished

ES#3138232 - 005259ECS02-01 - Billet Engine Oil Dipstick - Polished - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

From the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3138232
Mfg#:
005259ECS02-01
In Stock
ON SALE! SAVE 25%
$101.99

This product was last offered at the strikethrough price on
05-02-2026

$76.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DSG Dual Clutch Automatic Transmission Fluid - 1 Liter

ES#465406 - G052529A2 - DSG Dual Clutch Automatic Transmission Fluid - 1 Liter - Prevent premature transmission wear - Genuine Volkswagen Audi - Audi

Prevent premature transmission wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465406
Mfg#:
G052529A2
In Stock
$34.73 USD
Free Shipping
on orders $49 and up

18" Style 020 Wheels - Set Of Four

ES#2719034 - 020-12KT6 - 18" Style 020 Wheels - Set Of Four - 18"x8" ET35 5x112 - Silver with Machined Lip - Alzor - Audi Volkswagen

18"x8" ET35 5x112 - Silver with Machined Lip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2719034
Mfg#:
020-12KT6
In Stock
ON SALE! SAVE 25%
$1176.68

This product was last offered at the strikethrough price on
05-02-2026

$882.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Style 020 Wheels - Set Of Four

ES#2739909 - 020-24KT2 - 18" Style 020 Wheels - Set Of Four - 18x8.5 ET30 5x112 57.1CB - Gunmetal with Polished Lip - Alzor - Audi Volkswagen

18x8.5 ET30 5x112 57.1CB - Gunmetal with Polished Lip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Wheel spacers may be necessary for front caliper clearance

Brand:
Alzor - Corporate Logo
ES#:
2739909
Mfg#:
020-24KT2
In Stock
ON SALE! SAVE 25%
$1176.99

This product was last offered at the strikethrough price on
05-02-2026

$882.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Drivetrain Mounts Insert Package

ES#2975804 - 034-509-6000 - Drivetrain Mounts Insert Package - Complete mount insert set - 034Motorsport - Audi

Complete mount insert set affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2975804
Mfg#:
034-509-6000
In Stock
$294.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Competition Gen.2 Intercooler Kit Audi 2.7 BiTurbo

ES#4781416 - 200001006.SINGLE - Competition Gen.2 Intercooler Kit Audi 2.7 BiTurbo - eliminate any constraints present in the OEM setup - Wagner Tuning - Audi

eliminate any constraints present in the OEM setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wagner Tuning - Corporate Logo
ES#:
4781416
Mfg#:
200001006.SINGLE
In Stock
$790.00 USD
This product is lifetime replacement eligible Lifetime Replacement

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