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Audi A4 Performance Parts & Upgrades

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Audi B8/B8.5 A4 and S4 Rear Adjustable Sway Bar

ES#4027350 - 022845ecs01KT - Audi B8/B8.5 A4 and S4 Rear Adjustable Sway Bar - Reduce body roll and increase cornering speed - ECS - Audi

Reduce body roll and increase cornering speed 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4027350
Mfg#:
022845ECS01KT
In Stock
ON SALE! SAVE 10%
$346.99

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

$312.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 12.5mm With Conical Seat Bolts

ES#2603078 - 002411ECS02AKT4 - Wheel Spacer & Bolt Kit - 12.5mm With 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 For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2603078
Mfg#:
002411ECS02AKT4
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
This product is lifetime replacement eligible Lifetime Replacement

Rear Slotted Brake Rotors - Pair (330x22)

ES#4872023 - EMD-33022-PR - Rear Slotted Brake Rotors - Pair (330x22) - Upgrade your looks and performance with a set of slotted rotors! - Emmanuele Design - Audi

Upgrade your looks and performance with a set of slotted rotors!

Brand:
Emmanuele Design - Corporate Logo
ES#:
4872023
Mfg#:
EMD-33022-PR
Ships in 5 Business Days
$249.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 4 - 2-Piece Cross Drilled & Slotted Rotors (352x32)

ES#3082393 - B5S4S4BBKRXSKT - Front Big Brake Kit - Stage 4 - 2-Piece Cross Drilled & Slotted Rotors (352x32) - For customers with existing 18z calipers, brake pads, & fluid - ECS - Audi

For customers with existing 18z calipers, brake pads, & fluid 10X Entries For Our 25th Anniversary Sweepstakes!

Does not include calipers, brake pads, or brake fluid

Brand:
ECS - Corporate Logo
ES#:
3082393
Mfg#:
B5S4S4BBKRXSKT
In Stock at Vendor
ON SALE!
$1305.99

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

$1240.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Rear Sway Bar End Links - Pair

ES#2864590 - 034-402-4005 - Adjustable Rear Sway Bar End Links - Pair - Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks - 034Motorsport - Audi

Replace your flimsy, sloppy OEM sway bar end links with these performance engineered adjustable spherical endlinks

Brand:
034Motorsport - Corporate Logo
ES#:
2864590
Mfg#:
034-402-4005
Back Ordered
$248.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30)

ES#2628456 - 000690ECSBBKKT - Front Big Brake Kit - Stage 1 - 2-Piece Cross Drilled & Slotted Rotors (345x30) - Upgrade to the stopping power of the Audi S4/5 - ECS - Audi

Upgrade to the stopping power of the Audi S4/5 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2628456
Mfg#:
000690ECSBBKKT
Ships on Jan 20, 2027
Auto Notify
ON SALE!
$1303.99

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

$1238.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

17.5mm Wheel Spacers - Black (Pair)

ES#3476435 - 021460TMS03-06 - 17.5mm Wheel Spacers - Black (Pair) - Lightweight wheel spacers with a machined tab for easy removal - Turner Motorsport - Audi BMW MINI Porsche

Lightweight wheel spacers with a machined tab for easy removal 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3476435
Mfg#:
021460TMS03-06
Ships on Sep 9, 2026
Auto Notify
ON SALE!
$162.99

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

$154.84 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Drag Clutch Kit

ES#3098855 - 205fhddxdbKT - Stage 2 Drag Clutch Kit - Designed for drag or drift cars that see limited street use. Conservatively rated at 365ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for drag or drift cars that see limited street use. Conservatively rated at 365ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098855
Mfg#:
205FHDDXDBKT
Ships in 1 Business Day
$1237.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

LED License Plate Light Assemblies

ES#2210294 - B8LPLED - LED License Plate Light Assemblies - Keep your plate illuminated brilliantly with new plate light LED's - ZiZa - Audi

Keep your plate illuminated brilliantly with new plate light LED's 10X Entries For Our 25th Anniversary Sweepstakes!
Does not fit vehicles with factory LED license plate lights

Brand:
ZiZa - Corporate Logo
ES#:
2210294
Mfg#:
B8LPLED
In Stock
ON SALE! SAVE 10%
$71.99

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

$64.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Engine Cover Kit

ES#3509780 - 016308ECS01-04KT - Carbon Fiber Engine Cover Kit - Add a flash of style and elegance under your hood with an ECS Tuning Carbon Fiber Engine Cover - ECS - Audi

Add a flash of style and elegance under your hood with an ECS Tuning Carbon Fiber Engine Cover 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3509780
Mfg#:
016308ECS01-04KT
Ships in 1 day
ON SALE! SAVE 10%
$454.80

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

$409.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AWE Touring Edition Exhaust System - Audi B8/B8.5 A4 2.0T

ES#4726274 - AWEB8A420TR - AWE Touring Edition Exhaust System - Audi B8/B8.5 A4 2.0T - Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a war-cry wail. Features AWE's proprietary 180 Technology resonators. - AWE - Audi

Remarkably civil while idling/part throttle cruising, but unleashed at full throttle produces what some have called a “war-cry wail.” Features AWE's proprietary 180 Technology® resonators.

Brand:
AWE - Corporate Logo
ES#:
4726274
Mfg#:
AWEB8A420TR
In Stock at Vendor
Starting at $1225.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing With Removal Tool - Polished

ES#2730471 - 003602ECSKTA03AK - Billet Aluminum Oil Filter Housing With Removal Tool - Polished - 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#:
2730471
Mfg#:
003602ECSKTA03AK
Ships on Sep 23, 2026
Auto Notify
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

Audi B7 A4 S-line Rear Diffuser & Trunk Spoiler

ES#4751221 - 001215LA01EBKT - Audi B7 A4 S-line 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!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751221
Mfg#:
001215LA01EBKT
In Stock
ON SALE! SAVE 30%
$578.99

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

$407.36 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Support Center Bearing

ES#2864594 - 034-506-0003 - Driveshaft Support Center Bearing - Finally a solution to replacing the entire driveshaft - 034Motorsport - Audi

Finally a solution to replacing the entire driveshaft

Brand:
034Motorsport - Corporate Logo
ES#:
2864594
Mfg#:
034-506-0003
In Stock
$76.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Clutch Kit - Daily

ES#3106541 - k70614hdoKT - Stage 2 Clutch Kit - Daily - Designed for the daily-driven, weekend track warrior - Rated at 375 ft/lbs - South Bend Clutch - Audi

Designed for the daily-driven, weekend track warrior - Rated at 375 ft/lbs For use with LUK factory or South Bend SBCF70614 flywheels
Does not include flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106541
Mfg#:
K70614HDOKT
Ships on Aug 14, 2026
$1212.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Front Lip Overlay - Audi B8 A4 S-Line / S4

ES#3218893 - 022693ECS01 - Carbon Fiber Front Lip Overlay - Audi B8 A4 S-Line / S4 - Add a subtle touch of carbon fiber to your front bumper - ECS - Audi

Add a subtle touch of carbon fiber to your front bumper 10X Entries For Our 25th Anniversary Sweepstakes!

For models with S-Line (S4) front bumpers only up to the 2012 model year (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
3218893
Mfg#:
022693ECS01
In Stock
ON SALE! SAVE 47%
$225.99

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

$120.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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