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Audi S4 Most Popular Parts

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Silicone Turbo Inlet Hose - Audi B9 S4/S5

ES#3420204 - 024360ECS01 - Silicone Turbo Inlet Hose - Audi B9 S4/S5 - Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! - ECS - Audi

Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3420204
Mfg#:
024360ECS01
In Stock
ON SALE! SAVE 25%
$97.99

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

$73.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

850 Series Twin Disc Clutch Kit - Race

ES#3220834 - 02029-TD8R-S - 850 Series Twin Disc Clutch Kit - Race - The 850 series is a larger diameter assembly, which is designed for high horsepower applications - Steel flywheel included - Clutch Masters - Audi

The 850 series is a larger diameter assembly, which is designed for high horsepower applications - Steel flywheel included affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
3220834
Mfg#:
02029-TD8R-S
Ships in 4 Business Days
15% off MSRP

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

$3025.00

This product was last offered at the strikethrough price on
06-18-2026

$2571.99 USD
Free Shipping
on orders $49 and up

850 Series Twin Disc Clutch Kit - Race/Street

ES#3220825 - 02029-TD8S-S - 850 Series Twin Disc Clutch Kit - Race/Street - The 850 series is a larger diameter assembly, which is designed for high horsepower applications - Clutch Masters - Audi

The 850 series is a larger diameter assembly, which is designed for high horsepower applications affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
3220825
Mfg#:
02029-TD8S-S
Ships in 8 Business Days
15% off MSRP

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

$3025.00

This product was last offered at the strikethrough price on
06-18-2026

$2571.99 USD
This product is lifetime replacement eligible Lifetime Replacement

X-Clear Driveshaft Tunnel Brace

ES#4381928 - 034-603-0029 - X-Clear Driveshaft Tunnel Brace - Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. - 034Motorsport - Audi

Allows for a larger diameter exhaust to be installed without causing excessive rattling or vibration. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4381928
Mfg#:
034-603-0029
In Stock
$151.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Lower Spring Pad - Priced Each

ES#437265 - 8E0512297J - Rear Lower Spring Pad - Priced Each - Fits left and right side - Genuine Volkswagen Audi - Audi

Fits left and right side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437265
Mfg#:
8E0512297J
In Stock
26% off MSRP

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

$27.78

This product was last offered at the strikethrough price on
06-18-2026

$20.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

20" V710 Wheels - Set Of Four

ES#2959975 - V13701kt1 - 20" V710 Wheels - Set Of Four - 20"X9" ET35 66.6CB 5x112 Gunmetal - VMR - Audi BMW

20"X9" ET35 66.6CB 5x112 Gunmetal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
VMR - Corporate Logo
ES#:
2959975
Mfg#:
V13701KT1
Back Ordered
$1280.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.5" Cone Style Air Filter

ES#4304100 - CTS-AF-250 - 3.5" Cone Style Air Filter - Replacement filter for CTS-IT-300R and CTS-IT-938 - CTS - Audi

Replacement filter for CTS-IT-300R and CTS-IT-938 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4304100
Mfg#:
CTS-AF-250
Back Ordered
Auto Notify
ON SALE! SAVE 20%
$99.99

This product was last offered at the strikethrough price on
06-08-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8/B8.5 3.0T Downpipe Removal Tool

ES#4440458 - 012622LA01 - B8/B8.5 3.0T Downpipe Removal Tool - Easily remove stubborn downpipe nuts on your 3.0T downpipe. - ECS - Audi

Easily remove stubborn downpipe nuts on your 3.0T downpipe. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4440458
Mfg#:
012622LA01
In Stock
ON SALE! SAVE 25%
$15.99

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

$11.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

20" RFX5 Wheels - Set Of Four

ES#3236086 - rfx520105112btKT - 20" RFX5 Wheels - Set Of Four - 20"x10", ET33, CB66.6, 5x112 - Brushed Titanium - Rohana Wheels - Audi

20"x10", ET33, CB66.6, 5x112 - Brushed Titanium affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rohana Wheels - Corporate Logo
ES#:
3236086
Mfg#:
RFX520105112BTKT
Ships on Jul 10, 2026
$2550.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System

ES#4751050 - 026018ECSEBKT - Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System & Luft-Technik Intake System - Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System - Enthusiast Bundles - Audi

Improve the sound and performance of your vehicle with a valved catback & Luft-Technik Intake System Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751050
Mfg#:
026018ECSEBKT
In Stock
ON SALE! SAVE 23%
$3293.99

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

$2549.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#3561738 - 8W0399156BH - Transmission Mount - Includes bracket and rubber mounting - Genuine Volkswagen Audi - Audi

Includes bracket and rubber mounting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3561738
Mfg#:
8W0399156BH
Ships in 1-2 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.

$148.33

This product was last offered at the strikethrough price on
02-23-2026

$133.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8 Sport Shocks & Struts Kit

ES#3031021 - 24-119818KT1 - B8 Sport Shocks & Struts Kit - Ideal for use with lowering springs and upgraded sway bars - German-made with the same famous lifetime warranty - Bilstein - Audi

Ideal for use with lowering springs and upgraded sway bars - German-made with the same famous lifetime warranty affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
3031021
Mfg#:
24-119818KT1
In Stock
$636.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Low Pressure Fuel Sensor

ES#4613934 - 06E906051K - Low Pressure Fuel Sensor - Restore proper fueling to your engine - URO - Audi Volkswagen

Restore proper fueling to your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4613934
Mfg#:
06E906051K
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injectors - Set Of Eight

ES#3677370 - 079133551bKT - Fuel Injectors - Set Of Eight - Keep your engine running smooth - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3677370
Mfg#:
079133551BKT
In Stock
$2539.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hemi Throttle Body - 80mm Hemi Throttle Body Upgrade - 80mm

ES#4715966 - 53032801AC - Hemi Throttle Body - 80mm Hemi Throttle Body Upgrade - 80mm - The perfect solution for a high horsepower set ups - Continental - Audi Volkswagen

The perfect solution for a high horsepower set ups affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
4715966
Mfg#:
53032801AC
Back Ordered
Auto Notify
$253.99

This product was last offered at the strikethrough price on
01-30-2026

$194.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly MolyGen - Premium Oil Service Kit

ES#3439021 - molygenKT - Liqui Moly MolyGen - Premium Oil Service Kit - Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology - Assembled By ECS - Audi

Includes Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3439021
Mfg#:
MOLYGENKT
In Stock
ON SALE! SAVE 14%
$117.99

This product was last offered at the strikethrough price on
05-15-2026

$101.37 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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