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Audi S4 Essential Performance Parts & Upgrades

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Engine Street Shield Skid Plate Hardware Kit

ES#3493177 - 003251ECS02KT - Engine Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Engine Street Shield - ECS - Audi

Replacement hardware kit for your ECS Engine Street Shield 10X Entries For Our 25th Anniversary Sweepstakes!
Fits from the 2013 model year

Brand:
ECS - Corporate Logo
ES#:
3493177
Mfg#:
003251ECS02KT
In Stock
ON SALE! SAVE 20%
$140.53

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

$112.42 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Engine Oil Dipstick - Black anodized

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 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

Audi B8/B8.5 S4/S5 Left Side Engine Bay Cover - Matte Black

ES#4335425 - 006929la01KT - Audi B8/B8.5 S4/S5 Left Side Engine Bay Cover - Matte Black - Cover up unsightly under hood components with style! - ECS - Audi

Cover up unsightly under hood components with style! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4335425
Mfg#:
006929LA01KT
Ships on Aug 31, 2026
Auto Notify
ON SALE! SAVE 25%
$127.99

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

$95.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4 Tunnel Street Shield Aluminum Skid Plate

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 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

Carbon Fiber Antenna Cover

ES#3191298 - 022696ECS01 - Carbon Fiber Antenna Cover - Add a unique, lightweight look to your ride - ECS - Audi

Add a unique, lightweight look to your ride 10X Entries For Our 25th Anniversary Sweepstakes!

Fits up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3191298
Mfg#:
022696ECS01
In Stock
ON SALE! SAVE 20%
$93.99

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

$75.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Engine Cover

ES#4381933 - 034-1ZZ-1003 - Carbon Fiber Engine Cover - 034Motorsport's Carbon Fiber Engine Cover for the B8/B8.5 Audi 3.0 TFSI is designed to tastefully complement the factory engine bay with a beautiful carbon fiber weave - 034Motorsport - Audi

034Motorsport's Carbon Fiber Engine Cover for the B8/B8.5 Audi 3.0 TFSI is designed to tastefully complement the factory engine bay with a beautiful carbon fiber weave

Brand:
034Motorsport - Corporate Logo
ES#:
4381933
Mfg#:
034-1ZZ-1003
Ships in 3 Business Days
$416.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Supercharger Plate - Red Milled

ES#4620245 - 06E103927K-RDM - Billet Supercharger Plate - Red Milled - Upgrade the looks of the factory supercharger or replace your broken factory cover. - JH Motorsports - Audi

Upgrade the looks of the factory supercharger or replace your broken factory cover.

Brand:
JH Motorsports - Corporate Logo
ES#:
4620245
Mfg#:
06E103927K-RDM
Ships in 3 Business Days
$169.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS B-Cool Billet Oil Filter Housing

ES#3660001 - CTS-HW-0243 - CTS B-Cool Billet Oil Filter Housing - Offering great looks and heat dissipation - Not only does the B-Cool filter look good, but it works great! - CTS - Audi

Offering great looks and heat dissipation - Not only does the B-Cool filter look good, but it works great!

Brand:
CTS - Corporate Logo
ES#:
3660001
Mfg#:
CTS-HW-0243
In Stock
ON SALE! SAVE 20%
$79.99

This product was last offered at the strikethrough price on
07-10-2026

$63.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Engine Oil Drain Plug

ES#2749259 - 003365ECS01 - Magnetic Engine Oil Drain Plug - Capture harmful particles to prevent wear. M24x1.5 - ECS - Audi Volkswagen

Capture harmful particles to prevent wear. M24x1.5 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2749259
Mfg#:
003365ECS01
In Stock
ON SALE! SAVE 25%
$40.99

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

$30.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing Hook-Up - Audi 3.0T & 3.2L

ES#3137351 - 002292ECS01AKT - Billet Aluminum Oil Filter Housing Hook-Up - Audi 3.0T & 3.2L - Includes free Hengst Oil Filter with purchase of ECS Billet Oil Filter Housing - Limited time only! - Assembled By ECS - Audi

Includes free Hengst Oil Filter with purchase of ECS Billet Oil Filter Housing - Limited time only! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3137351
Mfg#:
002292ECS01AKT
In Stock
ON SALE!
$144.99

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

$144.51 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Billet HPFP Fuel Pump Cover - Black Milled

ES#4620209 - 079127025-07L127 - Billet HPFP Fuel Pump Cover - Black Milled - Easily enhance the look of your engine bay with these Billet HPFP Covers - JH Motorsports - Audi

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

Brand:
JH Motorsports - Corporate Logo
ES#:
4620209
Mfg#:
079127025-07L127
Ships in 4 Business Days
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Street Shield Hardware Kit

ES#3468577 - 019207ECS02KT - Engine Street Shield Hardware Kit - Replacement hardware kit for your front location ECS Street Shield - ECS - Audi

Replacement hardware kit for your front location ECS Street Shield 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3468577
Mfg#:
019207ECS02KT
In Stock
ON SALE! SAVE 10%
$90.99

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

$81.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Magnetic Drain Plug - Priced Each

ES#3551002 - VWR180000 - Billet Magnetic Drain Plug - Priced Each - Capture harmful particles to prevent wear. M14x1.5 - Racingline - Audi Volkswagen MINI Porsche

Capture harmful particles to prevent wear. M14x1.5

Brand:
Racingline - Corporate Logo
ES#:
3551002
Mfg#:
VWR180000
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Street Shield Skid Plate Hardware Kit

ES#3493176 - 003251ECS01KT - Engine Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Engine Street Shield - ECS - Audi

Replacement hardware kit for your ECS Engine Street Shield 10X Entries For Our 25th Anniversary Sweepstakes!
Fits up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3493176
Mfg#:
003251ECS01KT
In Stock
ON SALE! SAVE 20%
$94.21

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

$75.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Supercharger Plate - Black Milled

ES#4620215 - JHM-06E103927K-B - Billet Supercharger Plate - Black Milled - Upgrade the looks of the factory supercharger or replace your broken factory cover. - JH Motorsports - Audi

Upgrade the looks of the factory supercharger or replace your broken factory cover.

Brand:
JH Motorsports - Corporate Logo
ES#:
4620215
Mfg#:
JHM-06E103927K-B
Ships in 2 Business Days
$169.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

No Holes License Plate Bracket Kit

ES#3089102 - 0002S-AU1-50 - No Holes License Plate Bracket Kit - Avoid drilling holes in your bumper by utilizing a tow hook mounted plate bracket - GMG Motorsports - Audi

Avoid drilling holes in your bumper by utilizing a tow hook mounted plate bracket

Brand:
GMG Motorsports - Corporate Logo
ES#:
3089102
Mfg#:
0002S-AU1-50
Ships in 10 Business Days
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Essential Performance Parts & Upgrades

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