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Audi S4 Most Popular Parts

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Density Line Adjustable Rear Toe Links

ES#4465518 - 034-407-1006 - Density Line Adjustable Rear Toe Links - Direct, drop-in upgrade for the stamped steel factory rear toe links - 034Motorsport - Audi

Direct, drop-in upgrade for the stamped steel factory rear toe links affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4465518
Mfg#:
034-407-1006
Ships in 2 Business Days
$360.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Integrated Engineering 3.0T "Dual Pulley" Power Kit

ES#4351842 - ieppcgj2 - Integrated Engineering 3.0T "Dual Pulley" Power Kit - Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup - Integrated Engineering - Audi

Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU software plus "Dual Pulley" setup affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with manual transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4351842
Mfg#:
IEPPCGJ2
In Stock
$1799.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8.5 S4 Facelift Forged Carbon Front Lip & Rear Diffuser

ES#5446812 - 013868ECS0102CKT - Audi B8.5 S4 Facelift Forged Carbon Front Lip & Rear Diffuser - Hand-laid chopped carbon fiber to upgrade your exterior styling! - Enthusiast Bundles - Audi

Hand-laid chopped carbon fiber to upgrade your exterior styling! 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
Save an additional $100 when you bundle our Forged Carbon Front Lip AND Rear Diffuser!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
5446812
Mfg#:
013868ECS0102CKT
In Stock
ON SALE! SAVE 54%
$1938.44

This product was last offered at the strikethrough price on
05-06-2026

$899.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Euro Street Series Coilovers - Adjustable Dampening

ES#2839063 - mrcdkaa509 - Euro Street Series Coilovers - Adjustable Dampening - Featuring adjustable damping. Average lowering of 0.5"-2.0"F, 0.5"-2.0"R. - Megan Racing - Audi

Featuring adjustable damping. Average lowering of 0.5"-2.0"F, 0.5"-2.0"R. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems

Brand:
Megan Racing - Corporate Logo
ES#:
2839063
Mfg#:
MRCDKAA509
Back Ordered
14% off MSRP

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

$1049.00

This product was last offered at the strikethrough price on
06-21-2026

$899.99 USD
Free Shipping

Driveshaft Center Support Bearing Carrier

Holds the driveshaft where it should be affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 6HP19 transmissions (6 speed automatic)

Brand:
JXB Performance - Corporate Logo
ES#:
4305094
Mfg#:
B6004A0
In Stock at Vendor
Starting at $299.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#3419449 - 06E906265AJ - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - NTK - Audi

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits the left and right position

Brand:
NTK - Corporate Logo
ES#:
3419449
Mfg#:
06E906265AJ
In Stock at Vendor
$205.99

This product was last offered at the strikethrough price on
05-07-2026

$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Red - Priced Each

ES#4846419 - VWR900003 - RacingLine Higher Output Ignition Coil - Red - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4846419
Mfg#:
VWR900003
In Stock
$39.99 USD
Free Shipping
on orders $49 and up

Gas Cap With Strap

ES#3514670 - 4F0201550J - Gas Cap With Strap - Replace your leaking cap, or the one you left at the pump - URO - Audi

Replace your leaking cap, or the one you left at the pump 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!
For sedan/avant models only

Brand:
URO - Corporate Logo
ES#:
3514670
Mfg#:
4F0201550J
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#4810729 - 07L905163C - Camshaft Position Sensor - Located in the cylinder head - URO - Audi Volkswagen

Located in the cylinder head 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#:
4810729
Mfg#:
07L905163C
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Valve Spring Kit - Priced Per Spring

ES#4690063 - MS100258 - APR Valve Spring Kit - Priced Per Spring - Lighter, stiffer, and supports higher revving! - APR - Audi Volkswagen

Lighter, stiffer, and supports higher revving! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4690063
Mfg#:
MS100258
In Stock
11% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
06-21-2026

$61.99 USD
Free Shipping

19" RSE102 - Set Of Four

ES#4135486 - 88.102.14hbKT - 19" RSE102 - Set Of Four - 19"X9.0" ET40 5x112 - Hyper Silver Gloss - Neuspeed - Audi

19"X9.0" ET40 5x112 - Hyper Silver Gloss affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Neuspeed - Corporate Logo
ES#:
4135486
Mfg#:
88.102.14HBKT
Ships in 2 Business Days
$1796.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Apex VS-5 Wheels - Set Of Four

ES#4931824 - vs5188543571smKT - 18" Apex VS-5 Wheels - Set Of Four - 18x8.5 ET43 5x112 57.1CB - Satin Black - APEX Wheels - Audi Volkswagen

18x8.5 ET43 5x112 57.1CB - Satin Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4931824
Mfg#:
VS5188543571SMKT
Back Ordered
$1796.00 USD
This product is lifetime replacement eligible Lifetime Replacement

18" Apex VS-5 Wheels - Set Of Four

ES#4931822 - vs5188543571rsKT - 18" Apex VS-5 Wheels - Set Of Four - 18x8.5 ET43 5x112 57.1CB - Race Silver - APEX Wheels - Audi Volkswagen

18x8.5 ET43 5x112 57.1CB - Race Silver affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4931822
Mfg#:
VS5188543571RSKT
Back Ordered
$1796.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4690984 - 06M121115K - Thermostat Housing - Common point of failure for the cooling system. - Vernet - Audi

Common point of failure for the cooling system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vernet - Corporate Logo
ES#:
4690984
Mfg#:
06M121115K
In Stock
$70.99

This product was last offered at the strikethrough price on
05-07-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt

ES#280998 - 06E903137AB - Supercharger Belt - Replace your cracked or worn belt - Genuine Volkswagen Audi - Audi Volkswagen

Replace your cracked or worn belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280998
Mfg#:
06E903137AB
In Stock
7% off MSRP

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

$68.99

This product was last offered at the strikethrough price on
05-07-2026

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coil - Blue - Priced Each

ES#4708243 - VWR900000 - RacingLine Higher Output Ignition Coil - Blue - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4708243
Mfg#:
VWR900000
Ships on Jul 15, 2026
Auto Notify
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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