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Audi S4 Performance Parts & Upgrades

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ES#4147652 - 028802ecs01KT - Audi B9 A4/S4 Front Lip Spoiler - Gloss Black - Upgrade your exterior styling! - ECS - Audi

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

For 2018 Models Only

Brand:
ECS - Corporate Logo
ES#:
4147652
Mfg#:
028802ECS01KT
In Stock
ON SALE! SAVE 33%
$370.79

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

$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3624746 - 027966ECS01 - Adjustable Damping Performance Coilover System - Audi B6/B7 A4/S4 - Take control of your ride while going low with our sport-tuned coilover system! - ECS - Audi

Take control of your ride while going low with our sport-tuned coilover system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3624746
Mfg#:
027966ECS01
In Stock
ON SALE! SAVE 33%
$974.99

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

$649.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4736298 - 039803la01KT - 60A Solid Rubber OEM+ Engine Mount Kit - Audi B8 A4/S4/A5/S5/Q5/SQ5 C7 A6/A7 - 60A Durometer solid rubber that eliminates the soft and leak prone factory engine mounts. - ECS - Audi

60A Durometer solid rubber that eliminates the soft and leak prone factory engine mounts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4736298
Mfg#:
039803LA01KT
In Stock
ON SALE! SAVE 15%
$529.99

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

$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4629470 - TTE10494 - TTE810+ Turbo Upgrade - B9 S4/S5/SQ5 3.0T - Pair this with the Integrated Engineering or 034 Motorsports stage 3 tune for 600+hp! - The Turbo Engineers - Audi

Pair this with the Integrated Engineering or 034 Motorsports stage 3 tune for 600+hp! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Custom tuning software required for installation.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4629470
Mfg#:
TTE10494
In Stock
$4399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4369839 - 026018ECS - Audi B9 S4/S5 Sportback 3.0T Valved Exhaust System - ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience - ECS - Audi

ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4369839
Mfg#:
026018ECS
In Stock
ON SALE!
Starting at $1427.58 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3199718 - 034-401-1046 - Full Density Line Front Control Arm Kit - Includes new control arms with Density Line control arm bushings, ball joints, and hardware - 034Motorsport - Audi

Includes new control arms with Density Line control arm bushings, ball joints, and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits models up through production date 11/2/2009 (M12 Ball Joints) - Please verify existing prior to ordering

Brand:
034Motorsport - Corporate Logo
ES#:
3199718
Mfg#:
034-401-1046
In Stock
$964.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4726504 - AWEB8S4TR - AWE Touring Edition Exhaust System - B8/B8.5 S4 3.0T - Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a war-cry wail. Features AWE's proprietary 180 Technology resonators. - AWE - Audi

Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a “war-cry wail.” Features AWE's proprietary 180 Technology® resonators. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4726504
Mfg#:
AWEB8S4TR
In Stock
Starting at $1745.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3521692 - S-07-BR - BR Series Coilover Suspension Kit - Featuring 30 levels of adjustment and performance spring rates and valving - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BC Racing - Corporate Logo
ES#:
3521692
Mfg#:
S-07-BR
In Stock
$1215.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4759009 - EM100040 - APR Ultralink At-Home Tuning Cable - Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink! - APR - Audi Volkswagen Porsche

Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink! 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!
Only available for purchase in the United States and Canada.

Brand:
APR - Corporate Logo
ES#:
4759009
Mfg#:
EM100040
In Stock
$139.95 USD
Free Shipping
ES#3569215 - 025496ecs01KT - Audi B8.5 S4/S5 Facelift Luft-Technik Performance Supercharger Intercooler Kit - Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. - ECS - Audi

Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B8.5 Facelift Models

Brand:
ECS - Corporate Logo
ES#:
3569215
Mfg#:
025496ECS01KT
In Stock
ON SALE! SAVE 16%
$889.99

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

$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4684889 - 034-103-3306 - Dynamic+ End User Flashing Kit R4 (Flashing Device Only - Tuning Not Included) - End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. - 034Motorsport - Audi Volkswagen

End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
The 034SPI Mobile App is only available on vehicles with Dynamic+ Tuning installed. You must purchase Dynamic+ Tuning for your Audi or Volkswagen to access the Dynamic+ Flashing Suite and 034SPI Mobile Application.

Brand:
034Motorsport - Corporate Logo
ES#:
4684889
Mfg#:
034-103-3306
EO#:
D-850
In Stock
$180.00 USD
Free Shipping
ES#4043933 - 3215-11030 - AWE Resonated Downpipes - Audi B8/B8.5 3.0T - Features resonators larger than the stock units in order to produce a more mellow sound volume. - AWE - Audi

Features resonators larger than the stock units in order to produce a more mellow sound volume. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4043933
Mfg#:
3215-11030
In Stock
15% off MSRP

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

$1229.99

This product was last offered at the strikethrough price on
06-07-2026

$1045.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3176060 - 034-509-4053 - Billet Aluminum Transmission Mount Insert - This billet aluminum insert is designed to fill the large void in the factory transmission mount - 034Motorsport - Audi

This billet aluminum insert is designed to fill the large void in the factory transmission mount affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3176060
Mfg#:
034-509-4053
In Stock
$91.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4686058 - 002540LCA07KT - ECS Performance Ignition Service Kit - Includes six Red ECS coil packs and OEM spark plugs to service your ignition system - Assembled By ECS - Audi

Includes six Red ECS 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#:
4686058
Mfg#:
002540LCA07KT
In Stock
ON SALE! SAVE 14%
$361.99

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

$312.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4714616 - 012616LA01-01KT - B8 S4/S5/Q5 3.0T Downpipes With Resonator Deletes - Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. - ECS - Audi

Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4714616
Mfg#:
012616LA01-01KT
In Stock
ON SALE!
$549.99

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

$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4619953 - 034-509-5041 - Street Density Line Motor Mount Kit - 60 Durometer - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4619953
Mfg#:
034-509-5041
In Stock
$480.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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