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Audi A4 Performance Parts & Upgrades

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ES#4500832 - 034-108-1051 - X34 Carbon Fiber Intake System - Delivers improved power, sound, and acceleration in a clean OEM+ package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration in a clean OEM+ package. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4500832
Mfg#:
034-108-1051
Ships in 2 Business Days
$833.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3546573 - 034-401-1061 - Density Line Upper Control Arm Kit - Camber Correcting - Adds positive camber to achieve factory alignment specs after lowering, and reduce tire wear! - 034Motorsport - Audi

Adds positive camber to achieve factory alignment specs after lowering, and reduce tire wear! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3546573
Mfg#:
034-401-1061
Ships in 2 Business Days
$663.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2848070 - CTSEXHCB0013 - Cat-Back Exhaust System - Dual Exit Single Tips  - 2.5" stainless steel with dual 3" polished stainless tips - CTS - Audi

2.5" stainless steel with dual 3" polished stainless tips

Brand:
CTS - Corporate Logo
ES#:
2848070
Mfg#:
CTSEXHCB0013
Ships in 7 Business Days
$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4464616 - 2.0T-MLB-UC - Unitronic Performance Software - With UniCONNECT+ Cable - Choose the stage that meets your power goals! - Unitronic - Audi

Choose the stage that meets your power goals! This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4464616
Mfg#:
2.0T-MLB-UC
In Stock
Starting at $814.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3221135 - 003883ecs01ktKT4 - Front Big Brake Upgrade Kit - Stage 4 - 2-Piece Rotors (380x34) - Everything necessary to upgrade your stage-3 RS caliper 365mm kit to the stage-4 380mm kit. - ECS - Audi

Everything necessary to upgrade your stage-3 RS caliper 365mm kit to the stage-4 380mm kit. 10X Entries Into Our F80 M3 Sweepstakes
For customers with existing 365mm ECS Stage 3 Brake Kit with Audi RS5 Calipers

Brand:
ECS - Corporate Logo
ES#:
3221135
Mfg#:
003883ECS01KTKT4
Ships on Mar 18, 2027
ON SALE!
$1676.99

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

$1626.68 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4840220 - B8033A0 - Billet Linkage Stabilizer Rod Upgrade - Replaces failure-prone stock anchor rod - JXB Performance  - Audi

Replaces failure-prone stock anchor rod

Brand:
JXB Performance  - Corporate Logo
ES#:
4840220
Mfg#:
B8033A0
In Stock at Vendor
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2917843 - SSXAU517 - B7 A4 2.0T Cat-Back Exhaust System - Resonated - 2.5" stainless steel with dual GT 100mm polished tips - Milltek Sport - Audi

2.5" stainless steel with dual GT 100mm polished tips Automatic transmission only

Brand:
Milltek Sport - Corporate Logo
ES#:
2917843
Mfg#:
SSXAU517
Ships on Nov 27, 2026
$1606.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3147664 - ed-mt-2.0-fsi-KT - Maestro Tuning Suite - With Powertap Air Flash Tool - Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware - Eurodyne - Audi Volkswagen

Ideal for shops and enthusiasts looking to recalibrate their vehicles for modified hardware

Brand:
Eurodyne - Corporate Logo
ES#:
3147664
Mfg#:
ED-MT-2.0-FSI-KT
In Stock
$799.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2092327 - 35210030 - KW V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening Range of lowering is 1.4-2.5" in the front and 1.4-2.3" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092327
Mfg#:
35210030
Back Ordered
$3254.00

This product was last offered at the strikethrough price on
10-20-2026

$3194.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4739118 - EP24-977 - Front EP24 "Enthusiast Performance" Brake Pad Set - This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. - ECS - Audi Volkswagen Porsche

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. 10X Entries Into Our F80 M3 Sweepstakes

For use with the Stage 4 Big Brake Kit

Brand:
ECS - Corporate Logo
ES#:
4739118
Mfg#:
EP24-977
In Stock
ON SALE! SAVE 25%
$184.99

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

$138.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4686149 -  CTS-LS-012 - CTS Lowering Spring Set - B8/B8.5 A4/S4 - Average lowering front: 2.0" rear: 2.0" - CTS - Audi

Average lowering front: 2.0" rear: 2.0"

Brand:
CTS - Corporate Logo
ES#:
4686149
Mfg#:
CTS-LS-012
Ships in 7 Business Days
ON SALE! SAVE 15%
$249.99

This product was last offered at the strikethrough price on
09-29-2026

$212.49 USD
Free Shipping
ES#4845283 - 034-302-0027 - 034Motorsport Dynamic+ StreetSport Rear Brake Pad Set - Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! - 034Motorsport - Audi

Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4845283
Mfg#:
034-302-0027
In Stock
$245.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4430826 - VWR180004 - Billet Magnetic Drain Plug - Priced Each - Capture harmful particles to protect your 2.0 TSI EA888 Gen3 & 3B engine - Racingline - Audi Volkswagen Porsche

Capture harmful particles to protect your 2.0 TSI EA888 Gen3 & 3B engine

Brand:
Racingline - Corporate Logo
ES#:
4430826
Mfg#:
VWR180004
Ships in 3 Business Days
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3603968 - 034-401-1063 - Density Line Adjustable Upper Control Arm Kit (Track Spec) - Gain additional negative camber for increased cornering grip and improved handling performance - 034Motorsport - Audi Volkswagen

Gain additional negative camber for increased cornering grip and improved handling performance 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3603968
Mfg#:
034-401-1063
Ships in 2 Business Days
$635.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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