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Audi S4 Performance Parts & Upgrades

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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
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 1 Business Day
$278.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5445251 - B9SFRP3KT - Front & Rear DD23 "Daily Driver" Ceramic Brake Pad Set - This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! - ECS - Audi

This enthusiast-developed pad offers confident stopping power, very low dust, quiet braking, and a positive initial bite. The perfect choice for your daily-driven Euro! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5445251
Mfg#:
B9SFRP3KT
In Stock
$203.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4141990 - 02060-TDFR-SHV - FX850 Strapped Twin Disc Clutch Kit - A high performance clutch design for the track! - Clutch Masters - Audi

A high performance clutch design for the track! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
4141990
Mfg#:
02060-TDFR-SHV
Ships in 3 Business Days
15% off MSRP

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

$3272.99

This product was last offered at the strikethrough price on
06-12-2026

$2781.99 USD
Free Shipping
ES#4475767 - 02060-TDFS-SHV - FX850 Strapped Twin Disc Clutch Kit  - Designed to bridge the gap between a single disc clutch that is easy to drive on the street and the original FX850 Twin Disc! - Clutch Masters - Audi

Designed to bridge the gap between a single disc clutch that is easy to drive on the street and the original FX850 Twin Disc! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Clutch Masters - Corporate Logo
ES#:
4475767
Mfg#:
02060-TDFS-SHV
Ships in 7 Business Days
15% off MSRP

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

$3272.99

This product was last offered at the strikethrough price on
06-12-2026

$2781.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827370 - SSXAU240 - Cat-Back Exhaust System - Non-Resonated - 2.37" stainless steel with dual black Cerakote oval tips - Milltek Sport - Audi

2.37" stainless steel with dual black Cerakote oval tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827370
Mfg#:
SSXAU240
Ships in 3 Business Days
$2771.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2020 - 70477 - Performance Front Sway Bar - Upgrade your suspension with an adjustable sway bar. 32mm - H&R - Audi

Upgrade your suspension with an adjustable sway bar. 32mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2020
Mfg#:
70477
Back Ordered
$395.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2855865 - 012602ecs01 - Carbon Fiber Mirror Cap Set - Audi B5/C5/D2 - Upgrade your exterior look - ECS - Audi

Upgrade your exterior look affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855865
Mfg#:
012602ECS01
Ships on Oct 1, 2026
$351.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3514254 - 764440 - Sport & Sound Cat-Back Exhaust System - Resonated  - Stainless steel resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel resonated cat-back exhaust system with dual round, polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3514254
Mfg#:
764440
In Stock
Limited Qty Sale
$3055.99

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

$2734.99 USD
Free Shipping
ES#2092125 - 15210075 - KW V2 Series Coilover Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits sedan models without factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092125
Mfg#:
15210075
Ships in 6 Business Days
$2724.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2102340 - 15210078 - KW V2 Series Coilover Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits avant models without factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2102340
Mfg#:
15210078
Ships in 6 Business Days
$2724.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3569526 - 018360ecs01KT - Carbon Fiber Grille Accent Set - Audi B8.5  - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits Facelift models from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3569526
Mfg#:
018360ECS01KT
In Stock
$630.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4305102 - B5001A0 - Driveshaft Center Support Bearing Carrier - Holds the driveshaft where it should be - JXB Performance  - Audi

Holds the driveshaft where it should be affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JXB Performance  - Corporate Logo
ES#:
4305102
Mfg#:
B5001A0
In Stock
Starting at $299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4630656 - TTE10041 - TTE380+ Turbo Upgrade - B5 S4 & C5 A6 2.7T - Designed to put out over 400HP! - The Turbo Engineers - Audi

Designed to put out over 400HP! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Custom tuning software required for installation.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4630656
Mfg#:
TTE10041
Back Ordered
$2699.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4750957 - 028802ECSEBKT - Audi B9 A4/S4 Front Lip Spoiler With Trunk Spoiler - Upgrade your exterior styling! - Enthusiast Bundles - Audi

Upgrade your exterior styling! 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
Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4750957
Mfg#:
028802ECSEBKT
In Stock
ON SALE! SAVE 32%
$655.78

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

$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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