Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

Audi S4 Performance Parts & Upgrades

Sort By
Filter By
Return to Top
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
ES#3612228 - f21btceramic - F21 Hybrid Turbochargers (With 2-Pass Ceramic Coating)  - Complete bolt on Turbo upgrade including turbo inlet pipes - FrankenTurbo - Audi

Complete bolt on Turbo upgrade including turbo inlet pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FrankenTurbo - Corporate Logo
ES#:
3612228
Mfg#:
F21BTCERAMIC
Ships on Jun 30, 2026
$2099.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2731115 - 50556651SW - DRA Series Trak Spacers - 25mm (1 Pair) Black - Get that stance that you've been craving with these new spacers - H&R - Audi Mercedes Benz Porsche

Get that stance that you've been craving with these new spacers 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#:
2731115
Mfg#:
50556651SW
In Stock
$189.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4026793 - 022846ecs01KT - Audi B8/B8.5 A4 and S4 Front Adjustable Sway Bar Kit - Complete with ECS Tuning Adjustable End Links! - ECS - Audi

Complete with ECS Tuning Adjustable End Links! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4026793
Mfg#:
022846ECS01KT
In Stock
$416.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#8818 - DV100001 - Billet R1 Diverter Valve - Priced Each - Less maintenance, more boost - APR - Audi Volkswagen Porsche

Less maintenance, more boost 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!

2 required

Brand:
APR - Corporate Logo
ES#:
8818
Mfg#:
DV100001
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.

$316.99

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

$280.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4642770 - IEFUVO1 - IE 3.0T High Pressure Fuel Pump (HPFP) Internal Upgrade Kit - IE's HPFP internals upgrade kit for the Audi 3.0TFSI Supercharged engines is perfect for the DIY user looking to upgrade their factory-equipped HPFP pump body with new higher flowing internals - Integrated Engineering - Audi

IE's HPFP internals upgrade kit for the Audi 3.0TFSI Supercharged engines is perfect for the DIY user looking to upgrade their factory-equipped HPFP pump body with new higher flowing internals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4642770
Mfg#:
IEFUVO1
In Stock
$472.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4630174 - 034-401-1070 - Density Line Control Arm Kit Upper Adjustable - Track Spec - Gain additional negative camber for increased cornering grip and improved handling performance. - 034Motorsport - Audi

Gain additional negative camber for increased cornering grip and improved handling performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4630174
Mfg#:
034-401-1070
Back Ordered
$1226.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2931544 - 003326ecs01-02KT -  Performance Caliper Guide Bushing Set - Reduced caliper deflection, enhanced pedal feel, and improved pad wear. An excellent way to improve braking performance. Priced per axle. - ECS - Audi Volkswagen

Reduced caliper deflection, enhanced pedal feel, and improved pad wear. An excellent way to improve braking performance. Priced per axle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE
Industry leading design for maximum performance with minimal maintenance!

Brand:
ECS - Corporate Logo
ES#:
2931544
Mfg#:
003326ECS01-02KT
In Stock
$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2816885 - 010257ECS03KT - Carbon Fiber Mirror Cap Set - Audi B8 A4/A5/S4/S5 - 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! USE CODE ECS20 IN CART FOR BEST PRICE

For vehicles with lane change assist

Brand:
ECS - Corporate Logo
ES#:
2816885
Mfg#:
010257ECS03KT
In Stock
$381.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3450988 - 024671ECS01 - Front Exact-Fit Stainless Steel Brake Lines - Front set of DOT-compliant lines for an improved pedal feel - ECS - Audi

Front set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3450988
Mfg#:
024671ECS01
In Stock
$112.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3618566 - 034-604-7005 - 034Motorsport Wheel Spacer Pair - 15mm - Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi & Volkswagen vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3618566
Mfg#:
034-604-7005
In Stock
$115.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2951399 - 034-603-0008 - X-Brace Billet Aluminum Chassis Reinforcement - Increase torsional rigidity for improved steering feel and handling performance - 034Motorsport - Audi

Increase torsional rigidity for improved steering feel and handling performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2951399
Mfg#:
034-603-0008
In Stock
$752.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4005390 - 034-105-4045 -  Stainless Steel Racing Catalyst for B9 Audi S4/S5 - Offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note - 034Motorsport - Audi

Offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4005390
Mfg#:
034-105-4045
In Stock
$1700.00

This product was last offered at the strikethrough price on
03-08-2026

$1200.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

Let us help you find the parts that fit your Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings