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Audi S4 Performance Parts & Upgrades

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ES#4042990 - EMD-SPACER10571B - EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Includes everything you need to install spacers on two wheels - Emmanuele Design - Audi Volkswagen

Includes everything you need to install spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042990
Mfg#:
EMD-SPACER10571B
Ships in 1 Business Day
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3537749 - 025997ECS0618KT - Front Big Brake Kit - Stage 2 - Cross Dimpled & Slotted Rotors (345x30) - Upgrade your brake system to the 4-piston Brembo Q5 calipers. Features ECS V5 brake rotors. - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers. Features ECS V5 brake rotors. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3537749
Mfg#:
025997ECS0618KT
Ships in 1 day
$2307.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#3476922 - 023781ECS01-01 - Audi B9 Billet Tunnel Brace - Black - Replace your small and weak stamped brace with heavy-duty billet aluminum! - ECS - Audi

Replace your small and weak stamped brace with heavy-duty billet aluminum! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3476922
Mfg#:
023781ECS01-01
In Stock
ON SALE! SAVE 20%
$168.99

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

$135.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4505757 - 034-106-Z056 - High Pressure Fuel Pump Tool - Designed to make the disassembly and reassembly of the high pressure fuel pump a breeze! - 034Motorsport - Audi

Designed to make the disassembly and reassembly of the high pressure fuel pump a breeze! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4505757
Mfg#:
034-106-Z056
In Stock
$28.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4637661 - 015434LA01A - B5 S4 Center Differential Delete - NO WELDING NEEDED - Easily allows the removal of center differential when converting your B5 S4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of center differential when converting your B5 S4 to RWD (rear wheel drive) from Quattro affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4637661
Mfg#:
015434LA01A
Ships on Oct 27, 2026
ON SALE! SAVE 25%
$611.99

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

$458.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#250711 - 002403ECS03A20KT -  ECS Wheel Spacers - 20mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
250711
Mfg#:
002403ECS03A20KT
In Stock
ON SALE! SAVE 10%
$140.99

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

$126.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2167465 - 002411ECS01A08KT - ECS Wheel Spacers - 8mm (Pair) - Add some flair to your car with our new wheel spacers - ECS - Audi BMW Porsche

Add some flair to your car with our new wheel spacers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Designed to be used with aftermarket wheels

Brand:
ECS - Corporate Logo
ES#:
2167465
Mfg#:
002411ECS01A08KT
In Stock
ON SALE!
$95.99

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

$91.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2718830 - RSS13019-1 - RSS+ Coilover System - Damping Adjustable Shocks - Ultimate motorsport coilover - Average lowering 1.5"-2.7"F 1.4"-2.7"R - H&R - Audi

Ultimate motorsport coilover - Average lowering 1.5"-2.7"F 1.4"-2.7"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Vehicles equipped with Electronic Damping Control (EDC) will lose shock damping and receive a system error code with coilover systems.

Brand:
H&R - Corporate Logo
ES#:
2718830
Mfg#:
RSS13019-1
Ships in 3 Business Days
$2265.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2092106 - 15210032 - KW V2 Series Coilover Kit - Variant 2 coilovers offer sport handling with adjustable rebound dampening - KW Suspension - Audi

Variant 2 coilovers offer sport handling with adjustable rebound dampening affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Range of lowering is 1.5-2.9" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092106
Mfg#:
15210032
Back Ordered
$2264.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2960431 - 009352ECS01-02 - Billet Engine Oil Dipstick - Black anodized - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2960431
Mfg#:
009352ECS01-02
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4845284 - 034-3ZZ-0008 - 034Motorsport Titanium Brake Pad Shim Kit - Designed to reduce heat transfer between your brake pads and calipers, preventing brake fluid from overheating and fade during intense use. - 034Motorsport - Audi

Designed to reduce heat transfer between your brake pads and calipers, preventing brake fluid from overheating and fade during intense use. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4845284
Mfg#:
034-3ZZ-0008
In Stock
$141.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3660590 - IEINCG4 - IE Carbon Fiber Intake Lid - Add some style, class, and sporty look to your IE S4 or S5 3.0T Cold Air Intake with this direct-fit carbon fiber lid! - Integrated Engineering - Audi

Add some style, class, and sporty look to your IE S4 or S5 3.0T Cold Air Intake with this direct-fit carbon fiber lid! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
To be used in Integrated Engineering Cold Air Intake System: IEINCG2A or IEINSG1

Brand:
Integrated Engineering - Corporate Logo
ES#:
3660590
Mfg#:
IEINCG4
In Stock
$321.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4419864 - B8029A0 - Billet Linkage Reinforcement Kit - Transform your sloppy OEM shift linkage into a precision instrument for perfect shifts. - JXB Performance  - Audi

Transform your sloppy OEM shift linkage into a precision instrument for perfect shifts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JXB Performance  - Corporate Logo
ES#:
4419864
Mfg#:
B8029A0
In Stock
$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3537755 - 025997ECS0624KT - Front Big Brake Kit - Stage 2 - Slotted Rotors (345x30) - Upgrade your brake system to the 4-piston Brembo Q5 calipers. Features ECS V5 brake rotors. - ECS - Audi

Upgrade your brake system to the 4-piston Brembo Q5 calipers. Features ECS V5 brake rotors. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3537755
Mfg#:
025997ECS0624KT
Ships in 1 day
$2247.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#3183373 - 034-509-0007-TD - Density Line Track Density Motor Mount - Priced Each  - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3183373
Mfg#:
034-509-0007-TD
In Stock
$132.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3610310 - 023781ecs02KT - Audi B9 S4 Tunnel Street Shield Aluminum Skid Plate - Protect your vehicle's tunnel and improve aerodynamics - ECS - Audi

Protect your vehicle's tunnel and improve aerodynamics affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3610310
Mfg#:
023781ECS02KT
In Stock
ON SALE! SAVE 10%
$354.99

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

$319.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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