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Audi S4 Most Popular Parts

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2.50" stainless steel with your choice of tip style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4164540
Mfg#:
B9RESONATED
Ships in 3 Business Days
Starting at $3463.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4213518 - BSD1846 - Rear BSD Blade Brake Rotors - Pair (330x22) - Upgrade to the uniquely created blade slot designed for improved braking - EBC - Audi

Upgrade to the uniquely created blade slot designed for improved braking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
EBC - Corporate Logo
ES#:
4213518
Mfg#:
BSD1846
Ships in 1 Business Day
5% off MSRP

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

$436.99

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

$414.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2795753 - 003901ECS45BB -  Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#513369 - N90813202 - Oil Drain Plug - Includes crush washer. M14x1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Includes crush washer. M14x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
513369
Mfg#:
N90813202
In Stock
3% off MSRP

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

$7.80

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

$7.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4057317 - 023938ecs02KT2 - Front 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 EBC Yellow 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 EBC Yellow 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#:
4057317
Mfg#:
023938ECS02KT2
In Stock
ON SALE!
$1286.99

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

$1243.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1757 - 058109309E - Exhaust Cam Follower - Priced Each - Replace your worn down followers - Ina - Audi Volkswagen

Replace your worn down followers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
1757
Mfg#:
058109309E
In Stock
$16.99

This product was last offered at the strikethrough price on
12-22-2025

$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2177173 - 6-ECS-024 -  Wheel Spacer & Bolt Kit - 20mm With Ball Seat Bolts - Add some style to your Audi with these wheel spacers - ECS - Audi

Add some style to your Audi with these wheel spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels, or wheels that use OEM ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2177173
Mfg#:
6-ECS-024
In Stock
ON SALE! SAVE 10%
$179.99

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

$161.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2167469 - 002411ECS01A05Kt - ECS Wheel Spacers - 5mm (Pair) - Get the right size wheel spacer for your vehicle - ECS - Audi BMW Porsche

Get the right size wheel spacer for your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2167469
Mfg#:
002411ECS01A05KT
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3658989 - 53049880025/26KT - RS4 K04 Turbochargers - Complete Kit - Comprehensive kit includes the left & right side RS4 K04 turbochargers, 034Motorsport RS4 Inlet Pipe set, and associated installation hardware - Assembled By ECS - Audi

Comprehensive kit includes the left & right side RS4 K04 turbochargers, 034Motorsport RS4 Inlet Pipe set, and associated installation hardware 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#:
3658989
Mfg#:
53049880025/26KT
Ships in 1 Business Day
$3718.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2684768 - 06E103483PKT1 - Valve Cover Gasket Set - Includes the left and right side seals - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2684768
Mfg#:
06E103483PKT1
In Stock
$153.99

This product was last offered at the strikethrough price on
02-24-2026

$142.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5271 - 001564ECS01 - Adjustable Fuel Pressure Regulator - Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi - ECS - Audi Volkswagen

Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5271
Mfg#:
001564ECS01
In Stock
ON SALE! SAVE 15%
$229.99

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

$195.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3447 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bosch - Audi Volkswagen Porsche

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3447
Mfg#:
1C0906517A
In Stock
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4876087 - 06M121013D - Water Pump - 4 Bolt - New water pump. Does not include pulley - Graf - Audi Porsche

New water pump. Does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Graf - Corporate Logo
ES#:
4876087
Mfg#:
06M121013D
In Stock at Vendor
$319.99

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

$308.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#471534 - N91005902 - Hex Head Bolt - Priced Each - Secures crankshaft pulley to crank. M8x25 - Genuine Volkswagen Audi - Audi Volkswagen

Secures crankshaft pulley to crank. M8x25 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
8 required per engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471534
Mfg#:
N91005902
In Stock
40% off MSRP

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

$9.99

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

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2549972 - 8E0601025BDKT - 18" 15-Spoke Wheel - Set - 18"x8" 5x112 ET43 Titanium Grey - Genuine Volkswagen Audi - Audi

18"x8" 5x112 ET43 Titanium Grey affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2549972
Mfg#:
8E0601025BDKT
Ships in 9 Business Days
$3704.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#5396561 - s17d27r13znniKT - ECS Lug Bolts (Set Of 10) - 27mm - Black zinc coated 27mm (OEM Length) ball set wheel bolts - ECS - Audi Volkswagen

Black zinc coated 27mm (OEM Length) ball set wheel bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5396561
Mfg#:
S17D27R13ZNNIKT
In Stock
ON SALE! SAVE 25%
$44.99

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

$33.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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