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Audi S4 Most Popular Parts

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ES#3234457 - 023370ECS01 - 3.0T Supercharger Magnetic Drain/Fill Plug - Capture harmful particles to prevent wear - ECS - Audi Volkswagen Porsche

Capture harmful particles to prevent wear affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3234457
Mfg#:
023370ECS01
In Stock
ON SALE! SAVE 25%
$52.99

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

$39.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1346 - RS4KO4INSTKIT - K04/K03 Turbocharger Installation Kit - All hardware & gaskets to install new 2.7T turbochargers. - Assembled By ECS - Audi

All hardware & gaskets to install new 2.7T turbochargers. 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#:
1346
Mfg#:
RS4KO4INSTKIT
In Stock
$67.99

This product was last offered at the strikethrough price on
05-20-2026

$64.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4046136 - STS-B5S4E - JHM Solid Short Throw Shifter (Early Style) - If you desire the ultimate in shifting, the JH Motorsports B5 S4, C5 A6-allroad and B5 Passat Early Style Solid Short Throw Shifter is the perfect solution! - JH Motorsports  - Audi

If you desire the ultimate in shifting, the JH Motorsports B5 S4, C5 A6-allroad and B5 Passat Early Style Solid Short Throw Shifter is the perfect solution! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For early style shifters - Please see shifter comparison links in product description*

Brand:
JH Motorsports  - Corporate Logo
ES#:
4046136
Mfg#:
STS-B5S4E
Ships in 8 Business Days
$294.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A complete Kit to give you everything you need to replace a your rear control arms! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4803796
Mfg#:
8W0505311HKT
Ships in 10 Business Days
$3239.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#3194879 - k888KT - Z23 Evolution Sport Front & Rear Brake Service Kit - Includes Evolution Tru-Cast Drilled & Slotted rotors paired with Evolution Sport Pads for all four corners - Power Stop - Audi

Includes Evolution Tru-Cast Drilled & Slotted rotors paired with Evolution Sport Pads for all four corners affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Power Stop - Corporate Logo
ES#:
3194879
Mfg#:
K888KT
Ships in 2 Business Days
$404.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4849611 - 06E906051AC - MAP Sensor - Priced Each  - one located on both the charge pipe and inlet after the throttle body - Bosch - Audi

one located on both the charge pipe and inlet after the throttle body 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:
Bosch - Corporate Logo
ES#:
4849611
Mfg#:
06E906051AC
In Stock at Vendor
$97.99

This product was last offered at the strikethrough price on
05-04-2026

$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2802057 - 4B0407643A - Drive Axle Shoulder Bolt - Priced Each - Secures the axle assembly to the hub. M16x1.5x72 - Rein - Audi Volkswagen

Secures the axle assembly to the hub. M16x1.5x72 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:
Rein - Corporate Logo
ES#:
2802057
Mfg#:
4B0407643A
In Stock
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5701 - 000198500BLK-A - Fuel Pressure Gauge Kit - Great for custom tuning and easily installs on the pressure line - ECS - Audi Volkswagen

Great for custom tuning and easily installs on the pressure line affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Only fits 2.7T's with rubber fuel lines. Some 2.7T's came with aluminum braided fuel lines & this kit will NOT fit those specific application.

Brand:
ECS - Corporate Logo
ES#:
5701
Mfg#:
000198500BLK-A
In Stock
ON SALE!
$67.99

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

$65.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4043328 - 2660-15032 - AirGate Carbon Fiber Intake - With Lid - Max gains of 16 hp and 3 ft-lbs of torque at the wheels for B9 / 9.5 RS 4 / RS 5 2.9TT (with piggyback tuner) - AWE - Audi

Max gains of 16 hp and 3 ft-lbs of torque at the wheels for B9 / 9.5 RS 4 / RS 5 2.9TT (with piggyback tuner) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4043328
Mfg#:
2660-15032
In Stock
$1075.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#2081153 - 8E0853651M1QP - S-Line Grille Assembly - Grey - Clean up or change your look - Genuine Volkswagen Audi - Audi

Clean up or change your look affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits S4 & RS4 bumpers

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2081153
Mfg#:
8E0853651M1QP
Ships in 1-2 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.

$585.00

This product was last offered at the strikethrough price on
06-17-2026

$535.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3247798 - 5304988002526KT - RS4 K04 Turbochargers With Install Kit - Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware - Assembled By ECS - Audi

Includes the left (K04-025) & right (K04-026) side turbochargers with associated installation hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Does NOT include the RS4 or modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).

Brand:
Assembled By ECS - Corporate Logo
ES#:
3247798
Mfg#:
5304988002526KT
Ships in 2 Business Days
$3214.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3106550 - ks4b8sstzKT - Stage 3 Endurance Clutch Kit - Designed for dedicated track cars. Conservatively rated at 650ft/lbs. - South Bend Clutch - Audi

Designed for dedicated track cars. Conservatively rated at 650ft/lbs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106550
Mfg#:
KS4B8SSTZKT
Ships on Jul 8, 2026
$3210.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#284888 - 079129717D - Upper Intake Manifold Gasket - Priced Each - Seals the supercharger to the intake manifolds - Genuine Volkswagen Audi - Audi

Seals the supercharger to the intake manifolds affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284888
Mfg#:
079129717D
In Stock
31% off MSRP

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

$12.36

This product was last offered at the strikethrough price on
06-17-2026

$8.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3023199 - 009354ECS02-03 -  Billet Engine Oil Dipstick - Silver Anodized - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3023199
Mfg#:
009354ECS02-03
In Stock
ON SALE! SAVE 25%
$90.99

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

$68.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#7820 - B5S4FLWF - Lightweight Flywheel, 112621 - Fidanza - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For use with Audi B7 RS4 Clutch Kit - ES2538757*

Brand:
Fidanza - Corporate Logo
ES#:
7820
Mfg#:
B5S4FLWF
In Stock at Vendor
$640.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2863234 - 002403ECS02AKT4 - Wheel Spacer & Bolt Kit - 12.5mm - With Dust Cap - with Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2863234
Mfg#:
002403ECS02AKT4
In Stock
ON SALE! SAVE 15%
$156.99

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

$133.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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