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Audi S4 Most Popular Parts

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Rubber Grommet - Priced Each

ES#450311 - 8K0129669 - Rubber Grommet - Priced Each - Replace cracked or dried out components - Genuine Volkswagen Audi - Audi Volkswagen

Replace cracked or dried out components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the coolant expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450311
Mfg#:
8K0129669
In Stock
8% off MSRP

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

$12.99

This product was last offered at the strikethrough price on
06-27-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE AL552 ZF8 Performance TCU Tune

ES#4418874 - IESOWB1 - IE AL552 ZF8 Performance TCU Tune - Increased power, higher RPM limit, faster shifts, variable launch control and additional transmission performance features - Integrated Engineering - Audi

Increased power, higher RPM limit, faster shifts, variable launch control and additional transmission performance features affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
Requires a Stage 1 or higher ECU Tune.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4418874
Mfg#:
IESOWB1
In Stock
ON SALE! SAVE 10%
$878.99

This product was last offered at the strikethrough price on
06-25-2026

$791.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Performance TCU Tune

ES#3579785 - iesocgw1 - IE Performance TCU Tune - Increased power, higher RPM limit, faster shifts, optimized shift points, and adjustable launch control - Integrated Engineering - Audi

Increased power, higher RPM limit, faster shifts, optimized shift points, and adjustable launch control affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Perform tune in minutes from the comfort of your own driveway! Only available for purchase in the United States and Canada.
For vehicles with DSG transmission only

Brand:
Integrated Engineering - Corporate Logo
ES#:
3579785
Mfg#:
IESOCGW1
In Stock
ON SALE! SAVE 10%
$878.99

This product was last offered at the strikethrough price on
06-25-2026

$791.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Brake Service Kit - 2-Piece

ES#4057319 - 023938ecsKT - Rear Performance Brake Service Kit - 2-Piece - Comprehensive kit includes rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece rotors and ECS EP24 "Enthusiast Performance" brake pads! - Assembled By ECS - Audi

Comprehensive kit includes rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece rotors and ECS EP24 "Enthusiast Performance" brake pads! 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#:
4057319
Mfg#:
023938ECSKT
In Stock
ON SALE!
$862.99

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

$790.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Track Edition Conversion Kit - B8.5 S4/S5 - For 102mm Tips

ES#4044022 - 3820-41008 - AWE Track Edition Conversion Kit - B8.5 S4/S5 - For 102mm Tips - Looking to crank it up a notch? - AWE - Audi

Looking to crank it up a notch? affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

For vehicles from the 2013 model year (Facelift)

Brand:
AWE - Corporate Logo
ES#:
4044022
Mfg#:
3820-41008
Ships on Jul 17, 2026
$410.00

This product was last offered at the strikethrough price on
05-11-2026

$395.00 USD
This product is lifetime replacement eligible Lifetime Replacement

AWE Track Edition Conversion Kit - B8/B8.5 S4/S5 - For 90mm Tips

ES#4044021 - 3820-41006 - AWE Track Edition Conversion Kit - B8/B8.5 S4/S5 - For 90mm Tips - Looking to crank it up a notch? - AWE - Audi

Looking to crank it up a notch? affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4044021
Mfg#:
3820-41006
Ships on Jul 17, 2026
$410.00

This product was last offered at the strikethrough price on
05-11-2026

$395.00 USD
This product is lifetime replacement eligible Lifetime Replacement

JHM Front Mount Intercooler (FMIC) Kit - Black Couplers

ES#4046061 - FMICB5S4-BLACK - JHM Front Mount Intercooler (FMIC) Kit - Black Couplers - Tested and ran in JHM's record setting B5 S4 - Reduces charge temperatures and increases power - Proven real world performer! - JH Motorsports - Audi

Tested and ran in JHM's record setting B5 S4 - Reduces charge temperatures and increases power - Proven real world performer! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4046061
Mfg#:
FMICB5S4-BLACK
Ships in 10 Business Days
$789.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Caliper Anti-Rattle Spring - Priced Each

ES#2225113 - 8K0615269A - Front Caliper Anti-Rattle Spring - Priced Each - Fits the left and right side - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2225113
Mfg#:
8K0615269A
Ships in 2 Business Days
8% off MSRP

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

$85.99

This product was last offered at the strikethrough price on
06-27-2026

$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Polished Bolts

ES#3240972 - 023881ECS02KT - 19" Wheel Spacer Flush Fit Kit - Polished Bolts - Includes ECS spacers & Polished bolts to obtain a flush look on your OE 19" wheels - ECS - Audi

Includes ECS spacers & Polished bolts to obtain a flush look on your OE 19" wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3240972
Mfg#:
023881ECS02KT
Back Ordered
Auto Notify
ON SALE!
$270.99

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

$262.86 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Engine Timing Chain - Left

ES#4690009 - 079109229K - Upper Engine Timing Chain - Left - Replacement timing chain for required maintenance - Bremmen Parts - Audi

Replacement timing chain for required maintenance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4690009
Mfg#:
079109229K
In Stock
ON SALE! SAVE 20%
$46.99

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

$37.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Control Arm Bushing - Priced Each

ES#3427235 - 8D0407515C - Front Upper Control Arm Bushing - Priced Each - Fits left or right side - Meyle HD - Audi Volkswagen

Fits left or right side 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:
Meyle HD - Corporate Logo
ES#:
3427235
Mfg#:
8D0407515C
In Stock
$14.99

This product was last offered at the strikethrough price on
06-09-2026

$9.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear BBK (Big Brake Kit), JHM 300mm (11.8") for B5 A4-S4

ES#4046029 - BBK-1022x300x22 - Rear BBK (Big Brake Kit), JHM 300mm (11.8") for B5 A4-S4 - Finally a low cost rear Big Brake Kit - JH Motorsports - Audi

Finally a low cost rear Big Brake Kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4046029
Mfg#:
BBK-1022X300X22
In Stock
Limited Qty Sale
$824.99

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

$787.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Set Of Eight

ES#2532291 - 077905115TKT - Ignition Coil - Set Of Eight - Keep your engine running strong - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2532291
Mfg#:
077905115TKT
Ships in 1-2 days
$786.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Upper Control Arm Hardware Kit

ES#5234 - b5ucahkit - Front Upper Control Arm Hardware Kit - Complete hardware kit for the front upper control arms - Assembled By ECS - Audi

Complete hardware kit for the front upper control arms 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#:
5234
Mfg#:
B5UCAHKIT
In Stock
ON SALE! SAVE 11%
$67.99

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

$60.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Upper Control Arm Heim Joints Rebuild Kit

ES#4028112 - 034-401-Z035 - Adjustable Front Upper Control Arm Heim Joints Rebuild Kit - We now offer a rebuild kit for 034Motorsport Density Line Adjustable Upper Control Arms! - 034Motorsport - Audi Volkswagen

We now offer a rebuild kit for 034Motorsport Density Line Adjustable Upper Control Arms! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4028112
Mfg#:
034-401-Z035
In Stock
$131.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 084 Wheels - Set Of Four

ES#2823121 - 084-1KT1 - 19" Style 084 Wheels - Set Of Four - 19x9.5 ET40 5x112 57.1CB - Gunmetal - Alzor - Audi Volkswagen

19x9.5 ET40 5x112 57.1CB - Gunmetal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Alzor - Corporate Logo
ES#:
2823121
Mfg#:
084-1KT1
In Stock
ON SALE! SAVE 40%
$1310.00

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

$785.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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