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Audi S4 Performance Parts & Upgrades

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LED Overhead Lighting Kit - Red

ES#3138031 - 019396ECS05KT2 - LED Overhead Lighting Kit - Red - Transform your dome lamp lighting with these new LED bulbs from Ziza - ZiZa - Audi

Transform your dome lamp lighting with these new LED bulbs from Ziza 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ZiZa - Corporate Logo
ES#:
3138031
Mfg#:
019396ECS05KT2
Ships on Mar 30, 2027
ON SALE! SAVE 10%
$62.99

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

$56.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.)

ES#3021167 - Z1001791 - Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.) - DV100001 optional blue spring for 23-30 psi - APR - Audi Volkswagen

DV100001 optional blue spring for 23-30 psi Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3021167
Mfg#:
Z1001791
Ships in 5 Business Days
ON SALE! SAVE 12%
$31.99

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

$28.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Tow Hook Cover - Primed

ES#2540929 - 8K0807241EGRU - Front Tow Hook Cover - Primed - Replace your lost cover - Genuine Volkswagen Audi - Audi

Replace your lost cover

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2540929
Mfg#:
8K0807241EGRU
Ships in 1-2 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.

$62.99

This product was last offered at the strikethrough price on
08-31-2026

$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

R1 OPTIMUM OEp Series Brake Pads

OEM Formulation - equal or better performance, without the OEM prices.

Brand:
R1 Concepts - Corporate Logo
ES#:
4166256
Mfg#:
2552-1894-00
Ships in 7 Business Days
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 5mm (1 Pair)

ES#3570117 - MS100162 - Wheel Spacer Kit - 5mm (1 Pair) - 5mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi

5mm spacers to perfectly dial in your stance or clear your big brake kit! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3570117
Mfg#:
MS100162
Ships on Nov 18, 2026
ON SALE! SAVE 11%
$60.99

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

$54.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Security Lockout Service

ES#2063654 - APRSECPRG-SRV - Security Lockout Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

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

Brand:
APR - Corporate Logo
ES#:
2063654
Mfg#:
APRSECPRG-SRV
In Stock
ON SALE! SAVE 10%
$59.00

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

$53.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Fault Code Erase And Throttle Body Alignment Service

ES#2063651 - APRFCTB-SRV - Fault Code Erase And Throttle Body Alignment Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

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

Brand:
APR - Corporate Logo
ES#:
2063651
Mfg#:
APRFCTB-SRV
In Stock
ON SALE! SAVE 10%
$59.00

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

$53.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Pulley Installation Hardware Kit

ES#3142421 - N01473911KT3 - Lightweight Pulley Installation Hardware Kit - Includes brand new hardware to secure your new ECS Tuning Lightweight Pulley Set! - Assembled By ECS - Audi

Includes brand new hardware to secure your new ECS Tuning Lightweight Pulley Set! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with Bosch style alternators

Brand:
Assembled By ECS - Corporate Logo
ES#:
3142421
Mfg#:
N01473911KT3
Ships in 1-2 days
ON SALE! SAVE 11%
$58.99

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

$52.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Sway Bar Bushing Set - Street - 15mm

ES#2650248 - PFR3-210-15X2 - Performance Rear Sway Bar Bushing Set - Street - 15mm - Stiffer bushings allow sway bars to work at their fullest potential - Powerflex - Audi

Stiffer bushings allow sway bars to work at their fullest potential

Brand:
Powerflex - Corporate Logo
ES#:
2650248
Mfg#:
PFR3-210-15X2
Ships in 1 Business Day
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tow Hook Cover

ES#437890 - 8E0807241CGRU - Tow Hook Cover - Comes in primer, ready for paint - Genuine Volkswagen Audi - Audi

Comes in primer, ready for paint

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437890
Mfg#:
8E0807241CGRU
Ships in 1-2 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.

$57.99

This product was last offered at the strikethrough price on
10-05-2026

$51.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

FP34 Surge Tank Hardware Kit - -6AN Connections

ES#3419786 - 034-106-Z025 - FP34 Surge Tank Hardware Kit - -6AN Connections - Allows for -6AN connections for all inputs and outputs on the 034 FP34 Surge Tank - 034Motorsport - Audi Volkswagen

Allows for -6AN connections for all inputs and outputs on the 034 FP34 Surge Tank 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3419786
Mfg#:
034-106-Z025
Ships in 2 Business Days
$51.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Replacement Spanner Wrench Set - V2.0 2016+ Design

ES#3638940 - 700006 - Replacement Spanner Wrench Set - V2.0 2016+ Design - Replacement Spanner Set for Current 2016+ Design Solo Werks S1 Coilover kits - includes main perche and locking perch wrenches - Solo-Werks - Audi

Replacement Spanner Set for Current 2016+ Design Solo Werks S1 Coilover kits - includes main perche and locking perch wrenches

Brand:
Solo-Werks - Corporate Logo
ES#:
3638940
Mfg#:
700006
Ships on Dec 14, 2026
$25.00 USD
Free Shipping
on orders $49 and up

Cabriolet Brace Spacer Kit for Performance Exhaust

Allows you to make the room you need to fit most performance exhaust systems on the market. For cabriolet models only

Brand:
JH Motorsports - Corporate Logo
ES#:
4046053
Mfg#:
CABSPACERKIT
Ships in 10 Business Days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

LED Overhead Lighting Kit - Red

ES#3137507 - 019396ECS03KT2 - LED Overhead Lighting Kit - Red - Transform your dome lamp lighting with these new LED bulbs from Ziza - ZiZa - Audi

Transform your dome lamp lighting with these new LED bulbs from Ziza 10X Entries Into Our F80 M3 Sweepstakes
Sedan & Avant models only

Brand:
ZiZa - Corporate Logo
ES#:
3137507
Mfg#:
019396ECS03KT2
Ships on Mar 30, 2027
ON SALE! SAVE 10%
$54.99

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

$49.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Insert

ES#3194693 - CTS-HW-0150 - Transmission Mount Insert - Fills the large void in the factory transmission mount to reduce deflection - CTS - Audi

Fills the large void in the factory transmission mount to reduce deflection

Brand:
CTS - Corporate Logo
ES#:
3194693
Mfg#:
CTS-HW-0150
Special Order: No Guaranteed ETA
ON SALE! SAVE 20%
$59.99

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

$47.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

LED Reverse Light Kit

ES#2524008 - 1156LEDREVKT - LED Reverse Light Kit - Illuminate the path behind you with these bright LED's from Ziza! - ZiZa - Audi

Illuminate the path behind you with these bright LED's from Ziza! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ZiZa - Corporate Logo
ES#:
2524008
Mfg#:
1156LEDREVKT
In Stock
ON SALE! SAVE 10%
$50.99

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

$45.89 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.

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