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Audi S4 Performance Parts & Upgrades

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Conical Seat Stud Conversion Kit

ES#2806944 - 001467ECS01KT5 - Conical Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier 10X Entries Into Our F80 M3 Sweepstakes
Includes 2 different length studs for up to 10mm spacers for 2 wheels and 20mm spacers for 2 wheels.

Brand:
ECS - Corporate Logo
ES#:
2806944
Mfg#:
001467ECS01KT5
In Stock
ON SALE! SAVE 10%
$201.99

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

$181.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Adjustable Rear Toe Arms With Spherical Bearings

ES#4447729 - AK-275-A - Adjustable Rear Toe Arms With Spherical Bearings - Solid spherical bushings and adjustable lengths for perfectly dialed in camber settings. Adjustment range of +/-3.00 Degrees - GODSPEED - Audi

Solid spherical bushings and adjustable lengths for perfectly dialed in camber settings. Adjustment range of +/-3.00 Degrees

Brand:
GODSPEED - Corporate Logo
ES#:
4447729
Mfg#:
AK-275-A
Ships in 7 Business Days
$180.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

008 Premium Diverter Valve - Matte Silver

ES#2847752 - FMDV008MS - 008 Premium Diverter Valve - Matte Silver - Smaller, tougher and tuneable - Forge - Audi Volkswagen Porsche

Smaller, tougher and tuneable

Brand:
Forge - Corporate Logo
ES#:
2847752
Mfg#:
FMDV008MS
Back Ordered
$180.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacer - 8mm (1 Pair) - Version 1

ES#5106 - 1655571 - DR Series Wheel Spacer - 8mm (1 Pair) - Version 1 - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
5106
Mfg#:
1655571
Ships in 3 Business Days
10% off MSRP

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

$99.99

This product was last offered at the strikethrough price on
10-01-2026

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

DR Series Wheel Spacers (Black) - 5mm (1 Pair)

ES#2702315 - 1055571sw - DR Series Wheel Spacers (Black) - 5mm (1 Pair) - Change your stance with wheel spacers from H&R - H&R - Audi Volkswagen

Change your stance with wheel spacers from H&R We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2702315
Mfg#:
1055571SW
Ships in 3 Business Days
10% off MSRP

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

$99.99

This product was last offered at the strikethrough price on
06-30-2026

$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 5mm (1 Pair)

ES#154 - 1055665 - DR Series Wheel Spacers - 5mm (1 Pair) - Get that stance that you've been craving with these new spacers - H&R - Audi Mercedes Benz MINI Porsche

Get that stance that you've been craving with these new spacers We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
154
Mfg#:
1055665
Ships on Nov 16, 2026
10% off MSRP

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

$99.99

This product was last offered at the strikethrough price on
10-01-2026

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

Billet HPFP Fuel Pump Cover - Black

Easily enhance the look of your engine bay with these Billet HPFP Covers

Brand:
JH Motorsports - Corporate Logo
ES#:
4620213
Mfg#:
JHM-079127025-07
Ships in 4 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stainless Front Brake Lines for BBK

Made specifically for 19Z Cayenne Caliper retrofits! For vehicles using Porsche Cayenne 19Z calipers

Brand:
JH Motorsports - Corporate Logo
ES#:
4046120
Mfg#:
S4S5-BBK
Ships in 2 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Anti-Theft Service

ES#2063652 - APRTHEFT-SRV - Anti-Theft Service - *Sale applies only to ECU with 3 or 4 program purchase. - APR - Audi Volkswagen

*Sale applies only to ECU with 3 or 4 program purchase. Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063652
Mfg#:
APRTHEFT-SRV
In Stock
ON SALE! SAVE 10%
$199.00

This product was last offered at the strikethrough price on
09-28-2026

$179.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Flush Fit Kit - Polished Bolts

ES#2807067 - 010425ecs01KT - Wheel Spacer Flush Fit Kit - Polished Bolts - Includes spacers & Polished bolts to obtain a flush look on your OE 18" wheels - Assembled By ECS - Audi

Includes spacers & Polished bolts to obtain a flush look on your OE 18" wheels 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2807067
Mfg#:
010425ECS01KT
In Stock
ON SALE! SAVE 13%
$204.99

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

$178.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Flywheel Bolt Set - VR6

ES#4880755 - 034-H01-6011 - Flywheel Bolt Set - VR6 - These flywheel bolts have a reduced diameter head to allow them to fit in the tight 10-bolt pattern of the VR6 application. - 034Motorsport - Audi

These flywheel bolts have a reduced diameter head to allow them to fit in the tight 10-bolt pattern of the VR6 application. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4880755
Mfg#:
034-H01-6011
In Stock
$89.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B7 A4/S4/RS4 Master LED Interior Lighting Kit - Red

ES#3137471 - 019396ECS03KT - B7 A4/S4/RS4 Master LED Interior Lighting Kit - Red - Transform your complete interior in minutes with new LED interior bulbs from Ziza - ZiZa - Audi

Transform your complete interior in minutes with new LED interior bulbs from Ziza 10X Entries Into Our F80 M3 Sweepstakes
Sedan models only

Brand:
ZiZa - Corporate Logo
ES#:
3137471
Mfg#:
019396ECS03KT
Ships on Mar 30, 2027
ON SALE! SAVE 50%
$117.99

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

$59.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Short Throw Shifter

ES#3450339 - 891869 - Performance Short Throw Shifter - Offers up to a 40% throw reduction - Fidanza - Audi

Offers up to a 40% throw reduction

Brand:
Fidanza - Corporate Logo
ES#:
3450339
Mfg#:
891869
Special Order: No Guaranteed ETA
$176.41 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Guide - Priced Each

ES#2794454 - IEVTVA1 - Valve Guide - Priced Each - Upgrade to new bronze alloy valve guides - Integrated Engineering - Audi Volkswagen

Upgrade to new bronze alloy valve guides

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794454
Mfg#:
IEVTVA1
Back Ordered
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar End Link - Priced Each

ES#2795517 - 8K0411317D - Front Sway Bar End Link - Priced Each - Fits the left and right side - Vaico - Audi

Fits the left and right side We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2795517
Mfg#:
8K0411317D
Ships in 1 Business Day
$43.99

This product was last offered at the strikethrough price on
05-07-2026

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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