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Audi S4 Most Popular Parts

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Remanufactured Catalytic Converter - Right

ES#2532864 - 8E0254554QXKT - Remanufactured Catalytic Converter - Right - Price includes a $210 refundable core charge - Genuine Volkswagen Audi - Audi

Price includes a $210 refundable core charge Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2532864
Mfg#:
8E0254554QXKT
Ships in 10 Business Days
$4103.99

This product was last offered at the strikethrough price on
10-26-2026

$4068.99 USD
This product is lifetime replacement eligible Lifetime Replacement

IE Harsh Climate 5" Oiled Filter & Sock Kit

ES#4465497 - IEINUU2 - IE Harsh Climate 5" Oiled Filter & Sock Kit - Direct replacement filter for all popular IE air intake kits with a 5" velocity stack. - Integrated Engineering - Audi Volkswagen

Direct replacement filter for all popular IE air intake kits with a 5" velocity stack. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles that already have an IE intake

Brand:
Integrated Engineering - Corporate Logo
ES#:
4465497
Mfg#:
IEINUU2
In Stock
$76.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Rotor - Priced Each (350x34)

ES#4608858 - 09.D423.11 - Front Brake Rotor - Priced Each (350x34) - Brembo - Audi

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Brembo - Corporate Logo
ES#:
4608858
Mfg#:
09.D423.11
In Stock
$121.99

This product was last offered at the strikethrough price on
09-22-2026

$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Service Kit

ES#4620706 - G055190A2-2KT - Rear Differential Service Kit - Complete kit with Genuine fluids and drain plugs to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with Genuine fluids and drain plugs to service your rear differential Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
for vehicles without sport diff

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4620706
Mfg#:
G055190A2-2KT
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

19" Apex VS-5 Wheels - Set Of Four

ES#4931833 - vs519942571smbKT - 19" Apex VS-5 Wheels - Set Of Four - 19x9 ET42 5x112 57.1CB - Satin Black - APEX Wheels - Audi Volkswagen

19x9 ET42 5x112 57.1CB - Satin Black 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
APEX Wheels - Corporate Logo
ES#:
4931833
Mfg#:
VS519942571SMBKT
Ships in 5 Business Days
$2036.00 USD
This product is lifetime replacement eligible Lifetime Replacement

19" Apex VS-5 Wheels - Set Of Four

ES#4931832 - vs519942571sbzKT - 19" Apex VS-5 Wheels - Set Of Four - 19x9 ET42 5x112 57.1CB - Satin Bronze - APEX Wheels - Audi Volkswagen

19x9 ET42 5x112 57.1CB - Satin Bronze 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
APEX Wheels - Corporate Logo
ES#:
4931832
Mfg#:
VS519942571SBZKT
Ships in 5 Business Days
$2036.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#2593715 - 077905115TKT4 - Ignition Service Kit - Includes eight Bremi coil packs and eight Bosch spark plugs - Assembled By ECS - Audi

Includes eight Bremi coil packs and eight Bosch spark plugs 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593715
Mfg#:
077905115TKT4
In Stock
$312.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/C7 Spherical Outer Tie Rod Kit

10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
4620282
Mfg#:
4616139PDKGOZLMZ
In Stock
ON SALE! SAVE 11%
$302.99

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

$270.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

XB LED Projector Fog Lights - A5 Type - Pair

ES#4765934 - LF641 - XB LED Projector Fog Lights - A5 Type - Pair - Plug-and-play design that replaces the original halogen units using factory mounting points - Morimoto - Audi Volkswagen

Plug-and-play design that replaces the original halogen units using factory mounting points Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Up to the 2012 model year

Brand:
Morimoto - Corporate Logo
ES#:
4765934
Mfg#:
LF641
Ships in 9 Business Days
$169.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" Alzor Style 349 Wheel And Tire Package - 245/40R18 - Audi B8 A4/S4/A5/S5

ES#5445662 - 349A-24540-B8 - 18" Alzor Style 349 Wheel And Tire Package - 245/40R18 - Audi B8 A4/S4/A5/S5 - 18x8 ET35 5x112 66.6CB - Silver - With your choice of tires mounted and balanced for an easy install! - Alzor - Audi

18x8 ET35 5x112 66.6CB - Silver - With your choice of tires mounted and balanced for an easy install! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Alzor - Corporate Logo
ES#:
5445662
Mfg#:
349A-24540-B8
In Stock
ON SALE!
Starting at $1351.66 USD
Customize
Free Shipping

D2S 4200K Night Breaker 220 Bulb - Pair

ES#3714281 - 66240XNL - D2S 4200K Night Breaker 220 Bulb - Pair - Upgraded replacement laser xenon bulbs from Osram. 220% More Brightness! - Osram Sylvania - Audi BMW Volkswagen Mercedes Benz MINI

Upgraded replacement laser xenon bulbs from Osram. 220% More Brightness! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Osram Sylvania - Corporate Logo
ES#:
3714281
Mfg#:
66240XNL
Back Ordered
$192.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Premium Performance Coilover

ES#1303510 - 39471-1 - Premium Performance Coilover - Ultra lightweight aluminum performance kit. Average lowering of 1.6"-2.5"F 1.3"-2.0"R - H&R - Audi

Ultra lightweight aluminum performance kit. Average lowering of 1.6"-2.5"F 1.3"-2.0"R Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!
Fits Sedan models only

Brand:
H&R - Corporate Logo
ES#:
1303510
Mfg#:
39471-1
Ships in 3 Business Days
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$2250.00

This product was last offered at the strikethrough price on
10-01-2026

$2025.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Short Throw Shifter Kit

ES#4304757 - B8014A1 - Ultimate Short Throw Shifter Kit - The ONLY short throw that drastically reduces throw length, slop, and flex under load. Includes a Short Shift Clamp and Billet Shifter Mounting Plate with upgraded billet slider bushings. - JXB Performance - Audi

The ONLY short throw that drastically reduces throw length, slop, and flex under load. Includes a Short Shift Clamp and Billet Shifter Mounting Plate with upgraded billet slider bushings. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For manual transmissions only.

Brand:
JXB Performance - Corporate Logo
ES#:
4304757
Mfg#:
B8014A1
In Stock
$269.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Suspension Bracket - Left

ES#2998960 - 8K0412391F - Front Upper Suspension Bracket - Left - Mounting for the upper control arms and strut - Hamburg Tech - Audi

Mounting for the upper control arms and strut Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2998960
Mfg#:
8K0412391F
In Stock
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 / C7 Brake Cooling Duct Set

ES#4353029 - 006945la04 - Audi B8 / C7 Brake Cooling Duct Set - Increase air flow to your brakes! - ECS - Audi

Increase air flow to your brakes! 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
4353029
Mfg#:
006945LA04
In Stock
$91.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flush Kit

ES#3420790 - g013a8jm1kt5 - Coolant Flush Kit - Includes Schwaben coolant refill/air purge tool and 4.5 liters of G13 coolant. - Assembled By ECS - Audi Volkswagen

Includes Schwaben coolant refill/air purge tool and 4.5 liters of G13 coolant. 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Assembled By ECS - Corporate Logo
ES#:
3420790
Mfg#:
G013A8JM1KT5
In Stock
ON SALE!
$161.99

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

$149.57 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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