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Audi S4 Most Popular Parts

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Adjustable Front Sway Bar End Link Set - Audi B8/Porsche Macan

ES#3176605 - 003112ECS01 - Adjustable Front Sway Bar End Link Set - Audi B8/Porsche Macan - Attaches sway bar to control arm, adjustable to increase clearance between sway bar and axles. Offers just under 2" of adjustability! - ECS - Audi Porsche

Attaches sway bar to control arm, adjustable to increase clearance between sway bar and axles. Offers just under 2" of adjustability! 10X Entries Into Our F80 M3 Sweepstakes
Minimum length of 157MM. Maximum length of 205MM

Brand:
ECS - Corporate Logo
ES#:
3176605
Mfg#:
003112ECS01
In Stock
ON SALE! SAVE 25%
$224.99

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

$168.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#5504753

APR Iridium Pro Spark Plugs With Ignition Coils - Set Of 6

ES#4905912 - Z1004081W6ICKT - APR Iridium Pro Spark Plugs With Ignition Coils - Set Of 6 - Unleash Your Engine's Potential with APR - APR - Audi Porsche

Unleash Your Engine's Potential with APR Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4905912
Mfg#:
Z1004081W6ICKT
In Stock
ON SALE! SAVE 10%
$479.99

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

$431.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shocks & Struts Set - Sport B8

ES#2724033 - 8T0413031AFKT - Shocks & Struts Set - Sport B8 - Recommended for vehicles with lowering springs - Bilstein - Audi

Recommended for vehicles with lowering springs 10X Entries Into Our F80 M3 Sweepstakes

Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code

Brand:
Bilstein - Corporate Logo
ES#:
2724033
Mfg#:
8T0413031AFKT
Ships in 3 Business Days
$1154.99

This product was last offered at the strikethrough price on
10-06-2026

$900.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 S4 / A4 S-Line Pre-Facelift Front Lip - Gloss Black

ES#4164865 - 028805ecs01KT - Audi B8 S4 / A4 S-Line Pre-Facelift Front Lip - Gloss Black - Upgrade your exterior styling! - ECS - Audi

Upgrade your exterior styling! 10X Entries Into Our F80 M3 Sweepstakes

For vehicles up to the 2012 model year (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
4164865
Mfg#:
028805ECS01KT
In Stock
ON SALE! SAVE 25%
$315.99

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

$236.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Drivetrain Mount Insert Kit - Audi B8 A4/S4/Q5

ES#3097986 - 008288ecs01KT1 - Complete Drivetrain Mount Insert Kit - Audi B8 A4/S4/Q5 - Decrease slop; Increase drivetrain rigidity and response! - ECS - Audi
ECS Tuning recommends this product.

Decrease slop; Increase drivetrain rigidity and response! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3097986
Mfg#:
008288ECS01KT1
In Stock
ON SALE! SAVE 25%
$313.99

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

$235.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 628 Wheels - Set Of Four

ES#4324951 - 628-14KT - 19" Style 628 Wheels - Set Of Four - 19x8.5 ET35 5x112 66.6CB - Matte Gunmetal/Machined Face - Alzor - Audi MINI

19x8.5 ET35 5x112 66.6CB - Matte Gunmetal/Machined Face 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Alzor - Corporate Logo
ES#:
4324951
Mfg#:
628-14KT
Ships on Jan 11, 2027
ON SALE! SAVE 25%
$1300.00

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

$975.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 20mm With Black Conical Seat Bolts

ES#2748292 - 6-ECS-024 - Wheel Spacer & Bolt Kit - 20mm With Black 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 Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748292
Mfg#:
6-ECS-024
In Stock
ON SALE! SAVE 10%
$187.99

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

$169.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Tuner Spline Bolt Set - Black

ES#2713058 - BOLT-14x1.5BK - Conical Seat Tuner Spline Bolt Set - Black - Full set of 20 of socket-specific lug bolts. 14x1.5x28mm - MRR Design - Audi BMW Volkswagen

Full set of 20 of socket-specific lug bolts. 14x1.5x28mm

Brand:
MRR Design - Corporate Logo
ES#:
2713058
Mfg#:
BOLT-14X1.5BK
In Stock
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front V5 Drilled & Slotted Brake Rotors - Set (350x34)

ES#4668328 - 4M0615301AN-XS - Front V5 Drilled & Slotted Brake Rotors - Set (350x34) - Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. - ECS - Audi

Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4668328
Mfg#:
4M0615301AN-XS
In Stock
ON SALE! SAVE 10%
$525.99

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

$472.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#2748287 - 002411ECS03AKT1 - Wheel Spacer & Bolt Kit - 15mm With Black 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 Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748287
Mfg#:
002411ECS03AKT1
In Stock
ON SALE! SAVE 25%
$167.99

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

$125.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Style 370 Wheels - Set Of Four

ES#4629995 - 370-2KT - 19" Style 370 Wheels - Set Of Four - 19"x8.5" ET35 66.6CB 5x112 - Gloss Gunmetal - Alzor - Audi BMW MINI

19"x8.5" ET35 66.6CB 5x112 - Gloss Gunmetal 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Alzor - Corporate Logo
ES#:
4629995
Mfg#:
370-2KT
In Stock
ON SALE! SAVE 52%
$1300.00

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

$629.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS4 K04 Turbocharger - Right

ES#4140513 - 53049880026 - RS4 K04 Turbocharger - Right - Does not include hardware - BorgWarner - Audi

Does not include hardware Does NOT include hardware or the RS4/modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).

Brand:
BorgWarner - Corporate Logo
ES#:
4140513
Mfg#:
53049880026
In Stock
$1541.99

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

$1537.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ohlins Road And Track Coilovers

ES#3691438 - AUS MS00 - Ohlins Road And Track Coilovers - The hlins Road & Track suspension gives our customers a true racing experience, with their own cars, without losing comfort when commuting to work. - Ohlins - Audi

The Öhlins Road & Track suspension gives our customers a true racing experience, with their own cars, without losing comfort when commuting to work.

Brand:
Ohlins - Corporate Logo
ES#:
3691438
Mfg#:
AUS MS00
In Stock at Vendor
$3323.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

D3S 5000K XB HID Bulb - Pair

ES#4212782 - MM.N.076 - D3S 5000K XB HID Bulb - Pair - Quality replacement xenon bulbs from Morimoto - Morimoto - Audi Volkswagen

Quality replacement xenon bulbs from Morimoto

Brand:
Morimoto - Corporate Logo
ES#:
4212782
Mfg#:
MM.N.076
In Stock
$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump

ES#3419174 - 07L127026AK - High Pressure Fuel Pump - Located on the left cylinder head - Hitachi - Audi Volkswagen

Located on the left cylinder head

Brand:
Hitachi - Corporate Logo
ES#:
3419174
Mfg#:
07L127026AK
In Stock
$851.99

This product was last offered at the strikethrough price on
04-30-2026

$550.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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