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Audi S4 Most Popular Parts

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ES#5435532 - HW-561 - CTS Turbo Rear Subframe Insert Set - Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbos billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH. - CTS - Audi

Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbo’s billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435532
Mfg#:
HW-561
In Stock
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4715344 - 05-839-00131-0KT - Audi EA839 3.0T W.1 ECU Tune - Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Audi

Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4715344
Mfg#:
05-839-00131-0KT
Ships in 1 Business Day
$1499.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2593469 - 0AR409399BKT - Rear Differential Service Kit - Complete kit with OE fluid to service your rear differential - Genuine Volkswagen Audi - Audi

Complete kit with OE fluid to service your rear differential For vehicles without Torque Vectoring differentials

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593469
Mfg#:
0AR409399BKT
In Stock
$108.99

This product was last offered at the strikethrough price on
10-27-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4753244 - sm101785et43rsKT - 17" APEX SM-10 - Set Of Four - 17x8.5" ET43 5x112 - Race Silver - APEX Wheels - Audi Volkswagen

17x8.5" ET43 5x112 - Race Silver 2X Entries Into Our F80 M3 Sweepstakes

Brand:
APEX Wheels - Corporate Logo
ES#:
4753244
Mfg#:
SM101785ET43RSKT
Ships in 5 Business Days
$1496.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4370213 - sm101785et435KT1 - 17" APEX SM-10 - Set of Four - 17x8.5" ET43 5x112 - Satin Bronze - APEX Wheels - Audi Volkswagen

17x8.5" ET43 5x112 - Satin Bronze 2X Entries Into Our F80 M3 Sweepstakes

Brand:
APEX Wheels - Corporate Logo
ES#:
4370213
Mfg#:
SM101785ET435KT1
Back Ordered
$1496.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4753248 - SM101785ET43SMKT - 17" APEX SM-10 - Set of Four - 17x8.5" ET43 5x112 57.1CB - APEX Wheels - Audi Volkswagen

17x8.5" ET43 5x112 57.1CB 2X Entries Into Our F80 M3 Sweepstakes

Brand:
APEX Wheels - Corporate Logo
ES#:
4753248
Mfg#:
SM101785ET43SMKT
Back Ordered
$1496.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2678317 - 06E109465ASKT - Timing Chain Kit - Basic - Includes new guide rails & chains to service your timing chain - Genuine Volkswagen Audi - Audi

Includes new guide rails & chains to service your timing chain

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2678317
Mfg#:
06E109465ASKT
Ships Today
$1535.99

This product was last offered at the strikethrough price on
07-23-2026

$1495.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2644249 - 06E133781K - Purge Valve With Connecting Tube  - Keep your engine running smooth - Genuine Volkswagen Audi - Audi

Keep your engine running smooth Fits from the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2644249
Mfg#:
06E133781K
In Stock
9% off MSRP

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

$148.99

This product was last offered at the strikethrough price on
10-05-2026

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4696268 - 06M109257AF - Variable Valve Timing (VVT) Oil Control Valve - Priced Each - Solenoid Pressure Valve Screw - Genuine Volkswagen Audi - Audi

Solenoid Pressure Valve Screw

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4696268
Mfg#:
06M109257AF
Ships in 1 day
9% off MSRP

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

$148.99

This product was last offered at the strikethrough price on
10-05-2026

$135.99 USD
Free Shipping
on orders $49 and up
ES#2602129 - 02029HDC4KT - Stage 4 Clutch Kit W/ Flywheel - Featuring a 4 puck ceramic disc and 12lb aluminum flywheel - Assembled By ECS - Audi

Featuring a 4 puck ceramic disc and 12lb aluminum flywheel 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602129
Mfg#:
02029HDC4KT
Back Ordered
$1499.99

This product was last offered at the strikethrough price on
09-11-2026

$1494.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3138735 - SR014SGKT - 18" BBS SR Wheels - Set Of Four  - 18x8 ET35 5x112 57.1CB - Satin Grey - BBS - Audi Volkswagen

18x8 ET35 5x112 57.1CB - Satin Grey

Brand:
BBS - Corporate Logo
ES#:
3138735
Mfg#:
SR014SGKT
Ships on Nov 19, 2026
$1773.99

This product was last offered at the strikethrough price on
07-02-2026

$1493.99 USD
This product is lifetime replacement eligible Lifetime Replacement

18x8 ET37 5x112 57.1CB - Platinum Silver

Brand:
BBS - Corporate Logo
ES#:
4753272
Mfg#:
XR0103PGKT
Ships on Nov 19, 2026
$1773.99

This product was last offered at the strikethrough price on
07-23-2026

$1493.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4158917 - 8T1820021 - Blower Motor - Pushes air through the vent system - Mahle-Behr - Audi

Pushes air through the vent system From the 2013 model year

Brand:
Mahle-Behr - Corporate Logo
ES#:
4158917
Mfg#:
8T1820021
Ships in 1 Business Day
$186.99

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

$165.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2213715 - 8K0805594L - Radiator Core Support - Houses the radiator and condenser while providing front end support - Genuine Volkswagen Audi - Audi

Houses the radiator and condenser while providing front end support

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2213715
Mfg#:
8K0805594L
Ships in 1 day
13% off MSRP

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

$859.99

This product was last offered at the strikethrough price on
08-31-2026

$745.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4044002 - 3815-41008 - AWE Touring Edition Conversion Kit - B8/B8.5 S4/S5 - For 90mm Tips - Looking to bring it down a notch? - AWE - Audi

Looking to bring it down a notch? 2X Entries Into Our F80 M3 Sweepstakes

Brand:
AWE - Corporate Logo
ES#:
4044002
Mfg#:
3815-41008
Ships on Nov 24, 2026
15% off MSRP

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

$876.99

This product was last offered at the strikethrough price on
11-03-2026

$745.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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