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Audi S4 Performance Parts & Upgrades

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ES#3199709 - 034-603-0012 - Billet Aluminum Front Strut Brace  - Bolt-on upgrade for factory strut brace - Engineered to enhance handling dynamics and performance! - 034Motorsport - Audi

Bolt-on upgrade for factory strut brace - Engineered to enhance handling dynamics and performance! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3199709
Mfg#:
034-603-0012
In Stock
$515.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4315893 - 034-105-7051 - Res-X Resonator Delete Pipe And X-Pipe - Transform your exhaust note - 034Motorsport - Audi

Transform your exhaust note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4315893
Mfg#:
034-105-7051
In Stock
$443.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748278 - 6-ECS-015 - Wheel Spacer & Bolt Kit - 5mm With Black Ball Seat Bolts - Get the right size wheel spacer for your Audi - ECS - Audi

Get the right size wheel spacer for your Audi 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#:
2748278
Mfg#:
6-ECS-015
In Stock
ON SALE! SAVE 25%
$137.99

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

$103.27 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2816884 - 010257ECS02KT - Carbon Fiber Mirror Cap Set - Audi B8 A4/S4 - 8P A3 - 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!

For vehicles without lane change assist

Brand:
ECS - Corporate Logo
ES#:
2816884
Mfg#:
010257ECS02KT
In Stock
$366.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4858221 - IEINCG5 - Polymer Air Intake System - Up to +25HP gains with tuning - Integrated Engineering - Audi

Up to +25HP gains with tuning affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4858221
Mfg#:
IEINCG5
In Stock
$469.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2681113 - 003523ECS01A01KT - Front 2-Piece Tru-Float Scalloped Brake Rotors - Pair (345x30) - Direct bolt-on replacement - 27% less weight! - ECS - Audi Porsche

Direct bolt-on replacement - 27% 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#:
2681113
Mfg#:
003523ECS01A01KT
In Stock
ON SALE! SAVE 15%
$1122.99

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

$959.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2779628 - SA303H-3 - Stage 2+ Clutch Kit - Features a full faced, multi-friction disc with a torque rating of 490ft/lbs - Spec Clutches - Audi

Features a full faced, multi-friction disc with a torque rating of 490ft/lbs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spec Clutches - Corporate Logo
ES#:
2779628
Mfg#:
SA303H-3
Ships in 3 Business Days
$1089.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3191300 - 022697ECS01 - Carbon Fiber Antenna Cover - Add a unique, lightweight look to your ride - ECS - Audi Volkswagen

Add a unique, lightweight look to your ride affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3191300
Mfg#:
022697ECS01
In Stock
ON SALE! SAVE 20%
$95.99

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

$76.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4213431 - 022846ecs01kt2 - Audi B8/B8.5 A4 And S4 Front And Rear Adjustable Sway Bar Kit - Reduce body roll and increase cornering speed - ECS - Audi

Reduce body roll and increase cornering speed affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4213431
Mfg#:
022846ECS01KT2
In Stock
ON SALE! SAVE 10%
$718.99

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

$647.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3219160 - MS100128 - APR 3.0 TFSI Ultracharger System  - Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI - APR - Audi

Dramatically increases horsepower and torque, and maximizes the power potential of the 3.0 TFSI 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!
APR’s Ultracharger ECU Upgrade is included for those who currently have an APR Stage 2 ECU Upgrade. APR

Brand:
APR - Corporate Logo
ES#:
3219160
Mfg#:
MS100128
Back Ordered
11% off MSRP

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

$1037.99

This product was last offered at the strikethrough price on
06-08-2026

$921.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3247809 - 034-601-0046 - Billet Aluminum Rear Subframe Mount Insert Kit  - Maintain proper suspension geometry when cornering and reduce rear subframe movement - 034Motorsport - Audi

Maintain proper suspension geometry when cornering and reduce rear subframe movement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3247809
Mfg#:
034-601-0046
In Stock
$208.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3662300 - 026331ECS01 - Audi B6 / B7 Carbon Fiber B-Pillar Trim Set - Make your good side great with carbon fiber! - ECS - Audi

Make your good side great with carbon fiber! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3662300
Mfg#:
026331ECS01
In Stock
ON SALE! SAVE 10%
$323.99

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

$291.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4751328 - 028802ECS01EBKT - Audi B9 A4/S4 Front Lip Spoiler - Gloss Black & Grille Accent Set - Gloss Black - 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#:
4751328
Mfg#:
028802ECS01EBKT
In Stock
ON SALE! SAVE 39%
$657.78

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

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4447160 - 4m0615301an4ktKT - Front & Rear Cross-Drilled Brake Rotor Kit - No Pads - Features an Anti-Corrosion coating "Anti-Z" - Zimmermann - Audi

Features an Anti-Corrosion coating "Anti-Z" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Zimmermann - Corporate Logo
ES#:
4447160
Mfg#:
4M0615301AN4KTKT
In Stock
$820.99

This product was last offered at the strikethrough price on
04-29-2026

$705.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4429973 - 034-301-1008 - Front 2-Piece Brake Rotors - Pair (350x34) - 034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit - 034Motorsport - Audi

034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4429973
Mfg#:
034-301-1008
In Stock
$1050.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#628 - 29471-1 - Street Performance Coilover Kit - Unrivaled comfort and performance. Average lowering of 1.6"-2.5"F 1.3"-2.0"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.6"-2.5"F 1.3"-2.0"R 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!
Fits Sedan models only

Brand:
H&R - Corporate Logo
ES#:
628
Mfg#:
29471-1
Ships in 3 Business Days
$1575.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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