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Audi A4 Performance Parts & Upgrades

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ES#3085916 - 018359ECS01A - Audi B8.5 S4 / A4 S-Line Carbon Fiber Rear Diffuser - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

Fits S-Line bumpers from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3085916
Mfg#:
018359ECS01A
In Stock
ON SALE! SAVE 15%
$1019.99

This product was last offered at the strikethrough price on
06-13-2026

$866.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4674685 - IEINCK6 - IE Polymer Air Intake System - B9/B9.5 A4 & A5 2.0T - Bring high-quality motorsport design to your engine bay with IEs rotomold polymer intakedelivering better airflow, thrilling sound, and easy power gains. - Integrated Engineering - Audi

Bring high-quality motorsport design to your engine bay with IE’s rotomold polymer intake—delivering better airflow, thrilling sound, and easy power gains.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4674685
Mfg#:
IEINCK6
In Stock
$522.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4505755 - 034-401-1069 - Density Line Lower Control Arms - Replace your aging factory fluid-filled bushings with Density Line 65 durometer bushings in this comprehensive control arm kit - 034Motorsport - Audi

Replace your aging factory fluid-filled bushings with Density Line 65 durometer bushings in this comprehensive control arm kit 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4505755
Mfg#:
034-401-1069
In Stock
$657.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4045995 - B820THFCPipe - 3" Downpipe w/ High Flow Cat  - Replace your factory downpipe with this upgraded JHM high flow cat! - JH Motorsports  - Audi

Replace your factory downpipe with this upgraded JHM high flow cat!

Brand:
JH Motorsports  - Corporate Logo
ES#:
4045995
Mfg#:
B820THFCPIPE
In Stock
$524.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3097986 - 008288ecs01KT1 -  Complete Drivetrain Mount Insert Kit - Audi B8 A4/S4/Q5 - Decrease slop; Increase drivetrain rigidity and response! - ECS - Audi
ECS Tuning recommends this product.

Decrease slop; Increase drivetrain rigidity and response! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3097986
Mfg#:
008288ECS01KT1
In Stock
ON SALE! SAVE 30%
$313.99

This product was last offered at the strikethrough price on
06-13-2026

$219.78 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3617985 - T9451 - VTA Performance Blow-Off Valve - Direct-fit performance solution with aggressive blow-off sound - Go Fast Bits - Audi Volkswagen

Direct-fit performance solution with aggressive blow-off sound

Brand:
Go Fast Bits - Corporate Logo
ES#:
3617985
Mfg#:
T9451
In Stock
10% off MSRP

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

$229.99

This product was last offered at the strikethrough price on
11-04-2026

$206.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3176605 - 003112ECS01 - Adjustable Front Sway Bar End Link Set - Audi B8/Porsche Macan - Attaches sway bar to control arm, adjustable to increase clearance between sway bar and axles. Offers just under 2" of adjustability! - ECS - Audi Porsche

Attaches sway bar to control arm, adjustable to increase clearance between sway bar and axles. Offers just under 2" of adjustability! 10X Entries Into Our F80 M3 Sweepstakes
Minimum length of 157MM. Maximum length of 205MM

Brand:
ECS - Corporate Logo
ES#:
3176605
Mfg#:
003112ECS01
In Stock
ON SALE! SAVE 25%
$224.99

This product was last offered at the strikethrough price on
06-13-2026

$168.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4751213 - 026861ECS01EBKT - Audi B8.5 S4 Facelift Rear Diffuser & Trunk Spoiler - Add some aggressive styling to your Audi! - Enthusiast Bundles - Audi

Add some aggressive styling to your Audi! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!
Fits facelift B8.5 (2013+) S-Line models with quad tips only

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751213
Mfg#:
026861ECS01EBKT
In Stock
ON SALE!
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4220369 - 004802LA01AKT2 - Billet X-Brace - Red - Audi B8.5/Porsche Macan - Improve steering feel and handling! - ECS - Audi Porsche

Improve steering feel and handling! 10X Entries Into Our F80 M3 Sweepstakes

Fits Facelift models from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
4220369
Mfg#:
004802LA01AKT2
In Stock
ON SALE! SAVE 25%
$483.99

This product was last offered at the strikethrough price on
06-13-2026

$362.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748292 - 6-ECS-024 - Wheel Spacer & Bolt Kit - 20mm With Black Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748292
Mfg#:
6-ECS-024
In Stock
ON SALE! SAVE 10%
$187.99

This product was last offered at the strikethrough price on
06-13-2026

$169.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2748287 - 002411ECS03AKT1 - Wheel Spacer & Bolt Kit - 15mm With Black Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748287
Mfg#:
002411ECS03AKT1
In Stock
ON SALE! SAVE 30%
$167.99

This product was last offered at the strikethrough price on
06-13-2026

$117.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3557444 - 019219ecs01aKT2 -  Luft-Technik B9 A4 Intercooler And Charge Pipe Kit - Full kit to upgrade your charge pipes and FMIC - ECS - Audi

Full kit to upgrade your charge pipes and FMIC 10X Entries Into Our F80 M3 Sweepstakes

For vehicles with production date up through 2020

Brand:
ECS - Corporate Logo
ES#:
3557444
Mfg#:
019219ECS01AKT2
In Stock
ON SALE! SAVE 20%
$1060.99

This product was last offered at the strikethrough price on
06-13-2026

$848.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2794717 - IEBACG1 - IE Recirculating Catch Can Kit - Prevent crankcase oil fumes from condensing and filling your turbo piping, intercooler, and intake manifold - Integrated Engineering - Audi

Prevent crankcase oil fumes from condensing and filling your turbo piping, intercooler, and intake manifold
For models with plastic intake manifold only

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794717
Mfg#:
IEBACG1
In Stock
$591.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4841517 - 034-402-4039 - Density Line Front Sway Bar End Links - Pair - Replace your flimsy, imprecise OEM sway bar end links with these performance-engineered units! - 034Motorsport - Audi Porsche

Replace your flimsy, imprecise OEM sway bar end links with these performance-engineered units! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4841517
Mfg#:
034-402-4039
In Stock
$112.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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