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Audi A4 Performance Parts & Upgrades

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ST XA Performance Coilover System - Adjustable Damping

ES#4023588 - 18210030 - ST XA Performance Coilover System - Adjustable Damping - Developed alongside KW Automotive, the ST XA allows individual adjustment of the damping to suit just about all your driving needs! - Suspension Techniques - Audi

Developed alongside KW Automotive, the ST XA allows individual adjustment of the damping to suit just about all your driving needs! Fits Sedan & Cabriolet models only - Average lowering of 1.4" - 2.4" F / 1.4" to 2.6" R

Brand:
Suspension Techniques - Corporate Logo
ES#:
4023588
Mfg#:
18210030
Back Ordered
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST XA Performance Coilover System - Adjustable Damping

Developed alongside KW Automotive, the ST XA allows individual adjustment of the damping to suit just about all your driving needs! Fits Avant Models Only - Average lowering of 1.0'' to 2.2'' front and 1.0" to 2.0" rear - Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056984
Mfg#:
18210078
Ships in 4 Business Days
$1399.00 USD
Free Shipping

DS Series Coilover Suspension Kit

ES#3521687 - S-02-DS - DS Series Coilover Suspension Kit - Featuring 30 levels of adjustment and increased damping force at low speed piston velocities - BC Racing - Audi

Featuring 30 levels of adjustment and increased damping force at low speed piston velocities Fits both sedan and avant models

Brand:
BC Racing - Corporate Logo
ES#:
3521687
Mfg#:
S-02-DS
Back Ordered
$1395.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbonio Replacement Filter Element

ES#2592687 - RF100003 - Carbonio Replacement Filter Element - Replacement air filter for APR Carbonio intake systems - APR - Audi

Replacement air filter for APR Carbonio intake systems Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
2592687
Mfg#:
RF100003
EO#:
d-783-2
Ships in 4 Business Days
12% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
07-27-2026

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated

ES#2917844 - SSXAU516 - Cat-Back Exhaust System - Non-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#:
2917844
Mfg#:
SSXAU516
Ships in 4 Business Days
$1387.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Performance Air Ride Kit

ES#3974224 - 78570 - Front Performance Air Ride Kit - Allow your B9 Audi to sit on the ground! - Air Lift - Audi

Allow your B9 Audi to sit on the ground! For vehicles with 53mm front lower mounts

Brand:
Air Lift - Corporate Logo
ES#:
3974224
Mfg#:
78570
In Stock at Vendor
$1386.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Air Ride Kit

ES#2626357 - 75658 - Rear Performance Air Ride Kit - Allow your B8 Audi to sit on the ground! - Air Lift - Audi

Allow your B8 Audi to sit on the ground!

Brand:
Air Lift - Corporate Logo
ES#:
2626357
Mfg#:
75658
In Stock at Vendor
$1386.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Intake Manifold Plug & Boost Tap

ES#3432304 - 034-145-Z009 - Billet Intake Manifold Plug & Boost Tap - Designed for use with custom PCV, aftermarket catch can setups, or boost gauges. - 034Motorsport - Audi Volkswagen

Designed for use with custom PCV, aftermarket catch can setups, or boost gauges.

Brand:
034Motorsport - Corporate Logo
ES#:
3432304
Mfg#:
034-145-Z009
In Stock
$53.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 3

ES#5487 - RA4S3-STEEL - RA4 240mm Clutch Conversion Kit - Stage 3 - ECS RA4 Lightweight Flywheel with the Clutch Masters Stage 3 clutch kit - ECS - Audi Volkswagen

ECS RA4 Lightweight Flywheel with the Clutch Masters Stage 3 clutch kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5487
Mfg#:
RA4S3-STEEL
Ships on Sep 14, 2026
Auto Notify
$1376.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing With Removal Tool - Black Anodized

ES#2730475 - 003602ECS01A02AK - Billet Aluminum Oil Filter Housing With Removal Tool - Black Anodized - Aluminum replacement for plastic OE filter housing with 36mm socket - Assembled By ECS - Audi Volkswagen

Aluminum replacement for plastic OE filter housing with 36mm socket 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2730475
Mfg#:
003602ECS01A02AK
In Stock
ON SALE! SAVE 13%
$175.99

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

$152.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175307 - 251229 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits quattro manual transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175307
Mfg#:
251229
Ships in 4 Business Days
$275.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar - 24mm

ES#1876408 - 71361 - Rear Sway Bar - 24mm - Non-adjustable - H&R - Audi

Non-adjustable 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Sedan Only

Brand:
H&R - Corporate Logo
ES#:
1876408
Mfg#:
71361
In Stock
Limited Qty Sale
$300.00

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

$274.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Front Mount Intercooler

ES#3980512 - FMINT12 - Performance Front Mount Intercooler - Offering a huge 128% increase in frontal area and matching increase in internal volume - Forge - Audi

Offering a huge 128% increase in frontal area and matching increase in internal volume

Brand:
Forge - Corporate Logo
ES#:
3980512
Mfg#:
FMINT12
Ships in 4 Business Days
$1372.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Stainless Braided Brake Line Kit

ES#3432300 - 034-303-0008 - Stainless Braided Brake Line Kit - Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines - 034Motorsport - Audi

Replace your stock rubber brake hoses with these performance-minded stainless steel braided lines

Brand:
034Motorsport - Corporate Logo
ES#:
3432300
Mfg#:
034-303-0008
In Stock
$152.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DRA Series Wheel Spacers - 25mm (1 Pair)

ES#348 - 50556651 - DRA Series Wheel Spacers - 25mm (1 Pair) - Want to add some stance to your car with those new wheels? Get these new spacers today - H&R - Audi Mercedes Benz Porsche

Want to add some stance to your car with those new wheels? Get these new spacers today 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
348
Mfg#:
50556651
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.

$189.99

This product was last offered at the strikethrough price on
07-01-2026

$170.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 8mm (Pair)

ES#2063854 - 002403ECS01A08KT - ECS Wheel Spacers - 8mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi 10X Entries For Our 25th Anniversary Sweepstakes!
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2063854
Mfg#:
002403ECS01A08KT
In Stock
ON SALE! SAVE 25%
$95.99

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

$71.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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