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Audi A4 Performance Parts & Upgrades

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Sport Spring Set

ES#3545274 - 29061-2KT1 - Sport Spring Set - Unrivaled comfort and performance - H&R - Audi

Unrivaled comfort and performance 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits Avant models only - Average lowering of 1.2"F 1.2"R

Brand:
H&R - Corporate Logo
ES#:
3545274
Mfg#:
29061-2KT1
Ships in 3 Business Days
$439.00

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

$373.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wavetrac Rear Differential

ES#4266266 - 18-309-180WK - Wavetrac Rear Differential - Upgrade your vehicles differential! - Wavetrac - Audi

Upgrade your vehicles differential!

Brand:
Wavetrac - Corporate Logo
ES#:
4266266
Mfg#:
18-309-180WK
Special Order: No Guaranteed ETA
$1495.00 USD
Free Shipping
on orders $49 and up

ECS Wheel Spacer & Bolt Kit - 15mm With Conical Seat Bolts

ES#2568232 - ECS10157KTWBC - ECS Wheel Spacer & Bolt Kit - 15mm With Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries For Our 25th Anniversary Sweepstakes!
Fits most aftermarket wheels that require conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2568232
Mfg#:
ECS10157KTWBC
In Stock
ON SALE! SAVE 20%
$167.99

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

$134.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Build Your Own Power Package - Audi B8 A4 2.0T

ES#4017056 - B8A4PWRPK - Build Your Own Power Package - Audi B8 A4 2.0T - Go from mild to wild! Select the options you want for your build. - Assembled By ECS - Audi

Go from mild to wild! Select the options you want for your build. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4017056
Mfg#:
B8A4PWRPK
In Stock
ON SALE!
Starting at $0.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Front Sway Bar End Links

ES#4828168 - 034-402-4014 - Density Line Front Sway Bar End Links - Replace your flimsy, imprecise OEM sway bar end links with these performance engineered Density Line Front Sway Bar End Links - 034Motorsport - Audi Volkswagen

Replace your flimsy, imprecise OEM sway bar end links with these performance engineered Density Line Front Sway Bar End Links

Brand:
034Motorsport - Corporate Logo
ES#:
4828168
Mfg#:
034-402-4014
In Stock
$52.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Shuenk Longitudinal K04+ Turbo Upgrade

ES#4659697 - L-K04+-FSI - Shuenk Longitudinal K04+ Turbo Upgrade - A ready-to-install turbocharger with performance and reliability enhancing upgrades - Shuenk - Audi

A ready-to-install turbocharger with performance and reliability enhancing upgrades

Brand:
Shuenk - Corporate Logo
ES#:
4659697
Mfg#:
L-K04+-FSI
Ships in 2 Business Days
$1449.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Shuenk Longitudinal K04+ Turbo Upgrade

ES#4659702 - L-K04+-TSI - Shuenk Longitudinal K04+ Turbo Upgrade - A ready-to-install turbocharger with performance and reliability enhancing upgrades - Shuenk - Audi

A ready-to-install turbocharger with performance and reliability enhancing upgrades

Brand:
Shuenk - Corporate Logo
ES#:
4659702
Mfg#:
L-K04+-TSI
Ships in 2 Business Days
$1449.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DRA Series Wheel Spacers - 30mm (1 Pair)

ES#378 - 60556651 - DRA Series Wheel Spacers - 30mm (1 Pair) - H&R 30 mm spacers attach with supplied bolts, uses existing bolts to attach wheel to spacers. Bolts to the hub - H&R - Audi Mercedes Benz Porsche

H&R 30 mm spacers attach with supplied bolts, uses existing bolts to attach wheel to spacers. Bolts to the hub 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
378
Mfg#:
60556651
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
07-01-2026

$206.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 3

ES#5490 - B6A4RA4S3-STEEL - RA4 240mm Clutch Conversion Kit - Stage 3 - The Ultimate - Lightweight flywheel with the RS4 Stage 3 pressure plate and disc - ECS - Audi

The Ultimate - Lightweight flywheel with the RS4 Stage 3 pressure plate and disc 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5490
Mfg#:
B6A4RA4S3-STEEL
Ships on Sep 14, 2026
Auto Notify
$1442.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EBC Brakes Bluestuff Street and Track Day Brake Pads

ES#3132161 - DP51518NDX - EBC Brakes Bluestuff Street and Track Day Brake Pads - Intermediate grade trackday pads for aggressive street driving and track use. - EBC - Audi Volkswagen

Intermediate grade trackday pads for aggressive street driving and track use. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
EBC - Corporate Logo
ES#:
3132161
Mfg#:
DP51518NDX
In Stock
5% off MSRP

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

$137.99

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

$130.99 USD
Free Shipping

Adjustable Rear Sway Bar End Links

ES#3468833 - 034-402-4024 - Adjustable Rear Sway Bar End Links - Adjust preload on the sway bar, as well as alleviate any sway bar clearance issues caused by lowering your car - 034Motorsport - Audi

Adjust preload on the sway bar, as well as alleviate any sway bar clearance issues caused by lowering your car

Brand:
034Motorsport - Corporate Logo
ES#:
3468833
Mfg#:
034-402-4024
In Stock
$288.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 6mm With Black Ball Seat Bolts

ES#2748185 - ECS10610KTWB1 - ECS Wheel Spacer & Bolt Kit - 6mm With Black Ball Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 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#:
2748185
Mfg#:
ECS10610KTWB1
In Stock
ON SALE! SAVE 30%
$127.99

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

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 20mm Wheel Spacers - Pair (With Bolts)

ES#4430402 - EMD-SPACER-20-66 - EMD Auto 20mm Wheel Spacers - Pair (With Bolts) - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4430402
Mfg#:
EMD-SPACER-20-66
Ships in 7 Business Days
$110.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Valve Spring Kit - Priced Per Spring

ES#4690063 - MS100258 - APR Valve Spring Kit - Priced Per Spring - Lighter, stiffer, and supports higher revving! - APR - Audi Volkswagen

Lighter, stiffer, and supports higher revving! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4690063
Mfg#:
MS100258
Ships in 5 Business Days
11% off MSRP

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

$69.99

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

$61.99 USD
Free Shipping

More About Performance Parts & Upgrades

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