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Audi S4 Most Popular Parts

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Spark Plug (PFR6Q) - Priced Each

ES#7539 - pfr6q - Spark Plug (PFR6Q) - Priced Each - PFR6Q - Factory heat range plugs with platinum cores - NGK - Audi Volkswagen

PFR6Q - Factory heat range plugs with platinum cores affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
7539
Mfg#:
PFR6Q
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" RSE10 - Set Of Four

ES#3209632 - 88.10.13brKT - 18" RSE10 - Set Of Four - 18"x8", ET45, 5x112, 57.1mm CB - Satin Bronze - Neuspeed - Audi Volkswagen

18"x8", ET45, 5x112, 57.1mm CB - Satin Bronze affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Neuspeed - Corporate Logo
ES#:
3209632
Mfg#:
88.10.13BRKT
Ships on Sep 14, 2026
$1402.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket - Right

ES#3171005 - 06E103484N - Valve Cover Gasket - Right - Stop oil leaks and prevent internal engine damage - Elring - Audi

Stop oil leaks and prevent internal engine damage 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:
Elring - Corporate Logo
ES#:
3171005
Mfg#:
06E103484N
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B7/B8/B9/8V Modular No Holes License Plate/Tow Hook/Camera Mount System

ES#3614251 - 001912C0116A - Audi B7/B8/B9/8V Modular No Holes License Plate/Tow Hook/Camera Mount System - Everything a Euro-enthusiast desires from your factory tow hook mount! Modular system with attachments: ultra-strong tow hook, adjustable license plate bracket, dynamic camera mount. - ECS - Audi

Everything a Euro-enthusiast desires from your factory tow hook mount! Modular system with attachments: ultra-strong tow hook, adjustable license plate bracket, dynamic camera mount. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3614251
Mfg#:
001912C0116A
In Stock
ON SALE!
Starting at $46.74 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JHM Exhaust Headers With Cats

For Automatic Transmissions - Comes with cats and 2.5" cat back affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4759121
Mfg#:
JHM-B6S-LTH
Ships in 10 Business Days
$2799.99 USD
Free Shipping
on orders $49 and up

Front BBK (Big Brake Kit) JHM 330mm Cayenne (Brembo 6-piston)

Finally a low cost front Big Brake kit solution that uses the popular Porsche Cayenne caliper (6-piston Brembo). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4046028
Mfg#:
BBK-1019X330X32
Back Ordered
$2799.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear 2-Piece Scalloped Brake Rotors - Pair (330x22)

ES#3520785 - 023950ecs01KT - Rear 2-Piece Scalloped Brake Rotors - Pair (330x22) - Direct bolt-on upgrade to Tru-Float scalloped style rotors. 20% less weight! - ECS - Audi

Direct bolt-on upgrade to Tru-Float scalloped style rotors. 20% less weight! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3520785
Mfg#:
023950ECS01KT
In Stock
ON SALE! SAVE 32%
$1021.99

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

$699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Fuel Pump Upgrade Kit - High-Flow 340 LPH w/ Drop-In Adapter

ES#4045937 - B5340LPFP - JHM Fuel Pump Upgrade Kit - High-Flow 340 LPH w/ Drop-In Adapter - Drop in kit to work in conjunction with your factory fuel system - JH Motorsports - Audi

Drop in kit to work in conjunction with your factory fuel system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4045937
Mfg#:
B5340LPFP
Ships in 2 Business Days
$399.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ST XA Performance Coilover System - Adjustable Damping

ES#4056966 - 18210075 - ST XA Performance Coilover System - Adjustable Damping - Developed alongside KW Automotive, the ST XA allows individual adjustment of the damping to suit just about all your driving needs! - Suspension Techniques - Audi

Developed alongside KW Automotive, the ST XA allows individual adjustment of the damping to suit just about all your driving needs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Sedan Models Only - Average lowering of 0.6'' to 1.8'' front and 0.6" to 1.6" rear - Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056966
Mfg#:
18210075
In Stock at Vendor
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Front/Rear Sway Bars

ES#4876154 - 000745LAEBKT2 - B9 A4/A5/S4/S5 Quattro Adjustable Damping Coilovers & Front/Rear Sway Bars - Enhance your B9 with a performance-tuned coilover suspension setup & upgraded sway bars! - Enthusiast Bundles - Audi

Enhance your B9 with a performance-tuned coilover suspension setup & upgraded sway bars! 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

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876154
Mfg#:
000745LAEBKT2
Ships on Oct 28, 2026
Auto Notify
ON SALE! SAVE 25%
$1863.98

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

$1399.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Brake Service Kit

ES#4346254 - 8K0698301MKT9 - Front Brake Service Kit - Featuring ECS V5 coated rotors and Akebono Euro Ceramic pads - Assembled By ECS - Audi

Featuring ECS V5 coated rotors and Akebono Euro Ceramic 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#:
4346254
Mfg#:
8K0698301MKT9
In Stock
ON SALE! SAVE 17%
$374.99

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

$310.35 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front FloorLiner DigitalFit - Black

ES#2837615 - 442121 - Front FloorLiner DigitalFit - Black - Laser measured for perfect fitment and ultimate protection against moisture and debris - WeatherTech - Audi

Laser measured for perfect fitment and ultimate protection against moisture and debris affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
WeatherTech - Corporate Logo
ES#:
2837615
Mfg#:
442121
In Stock
$146.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Power Steering Rack

ES#2710687 - 8E1422054CXKT - Remanufactured Power Steering Rack - Includes a $300.00 refundable core charge - Genuine Volkswagen Audi - Audi

Includes a $300.00 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2710687
Mfg#:
8E1422054CXKT
Ships in 8 Business Days
$2790.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#4475295 - 06M905606F2KT - Performance Ignition Service Kit - Includes six Blue APR coil packs and OEM spark plugs to service your ignition system - Assembled By ECS - Audi

Includes six Blue APR coil packs and OEM spark plugs to service your ignition system 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#:
4475295
Mfg#:
06M905606F2KT
In Stock
$398.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Atmospheric Dump Valve - Polished Silver

ES#4726975 - FMDV13A-C - Atmospheric Dump Valve - Polished Silver - Prevent boost leaks with full billet construction - Forge - Audi

Prevent boost leaks with full billet construction affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
4726975
Mfg#:
FMDV13A-C
Ships in 8 Business Days
$278.99 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
06-18-2026

$61.99 USD
Free Shipping

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