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Audi A4 Essential Performance Parts & Upgrades

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Carbon Fiber Engine Cover Kit & Performance Ignition Coils

ES#4751076 - 016308ECS010EBKT - Carbon Fiber Engine Cover Kit & Performance Ignition Coils - Add a flash of style and elegance under your hood with an ECS Tuning Carbon Fiber Engine Cover - Enthusiast Bundles - Audi

Add a flash of style and elegance under your hood with an ECS Tuning Carbon Fiber Engine Cover Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751076
Mfg#:
016308ECS010EBKT
Ships in 3 Business Days
ON SALE! SAVE 15%
$577.14

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

$489.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Boost Tap Kit

ES#3136139 - 005942ECS01KT2 - Throttle Body Boost Tap Kit - Installs between the throttle body and intake manifold. Features two vacuum ports for multiple boost / vacuum references. - ECS - Audi

Installs between the throttle body and intake manifold. Features two vacuum ports for multiple boost / vacuum references. 10X Entries Into Our F80 M3 Sweepstakes

For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
3136139
Mfg#:
005942ECS01KT2
In Stock
ON SALE! SAVE 15%
$100.99

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

$85.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Manifold Port Boost Tap Kit

ES#3136138 - 013576ECS01KT2 - Manifold Port Boost Tap Kit - Installs in the unused port of the intake manifold. Features three vacuum ports for multiple boost / vacuum references. - ECS - Audi

Installs in the unused port of the intake manifold. Features three vacuum ports for multiple boost / vacuum references. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3136138
Mfg#:
013576ECS01KT2
In Stock
ON SALE! SAVE 20%
$88.99

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

$71.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Engine Bay Block Off Plugs - Set

ES#3667767 - 026829ECS01 - Audi B9 Engine Bay Block Off Plugs - Set - Keep your engine bay clean and pristine! - ECS - Audi

Keep your engine bay clean and pristine! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3667767
Mfg#:
026829ECS01
In Stock
ON SALE! SAVE 89%
$45.99

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

$4.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing - Silver Anodized

ES#3106649 - 005887ECS02KT - Billet Aluminum Oil Filter Housing - Silver Anodized - Ditch the easily broken/stripped plastic oil filter housing for a durable billet upgrade - ECS - Audi

Ditch the easily broken/stripped plastic oil filter housing for a durable billet upgrade 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3106649
Mfg#:
005887ECS02KT
In Stock
ON SALE!
$126.99

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

$123.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Street Shield Skid Plate Hardware Kit

ES#3470642 - 017881ecs01KT2 - Transmission Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Transmission Street Shield - ECS - Audi

Replacement hardware kit for your ECS Transmission Street Shield 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3470642
Mfg#:
017881ECS01KT2
In Stock
ON SALE! SAVE 10%
$124.99

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

$112.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing Hook-Up - Polished

ES#3137380 - 005887ECS01KT3 - Billet Aluminum Oil Filter Housing Hook-Up - Polished - 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 Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3137380
Mfg#:
005887ECS01KT3
In Stock
ON SALE! SAVE 19%
$137.99

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

$112.14 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Street Shield Skid Plate Hardware Kit

ES#3493186 - 003252ECS02KT3 - Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Street Shield Skid Plate - ECS - Audi

Replacement hardware kit for your ECS Street Shield Skid Plate 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3493186
Mfg#:
003252ECS02KT3
In Stock
ON SALE! SAVE 20%
$203.60

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

$162.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Shield Hardware Kit

ES#5482175 - 8D0805960KT - Street Shield Hardware Kit - Replacement hardware kit for your ECS Street Shield - Assembled By ECS - Audi Volkswagen

Replacement hardware kit for your ECS Street Shield 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5482175
Mfg#:
8D0805960KT
In Stock
$192.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet HPFP Fuel Pump Cover - Black

ES#4620211 - JHM-06L127025-06 - Billet HPFP Fuel Pump Cover - Black - Easily enhance the look of your engine bay with a Billet HPFP Cover - JH Motorsports - Audi Volkswagen

Easily enhance the look of your engine bay with a Billet HPFP Cover

Brand:
JH Motorsports - Corporate Logo
ES#:
4620211
Mfg#:
JHM-06L127025-06
Ships in 2 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Shield Skid Plate Hardware Kit

ES#3493179 - 003252ECS02KT - Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Street Shield Skid Plate - ECS - Audi

Replacement hardware kit for your ECS Street Shield Skid Plate 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3493179
Mfg#:
003252ECS02KT
In Stock
ON SALE! SAVE 20%
$200.56

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

$160.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Shield Skid Plate Hardware Kit

ES#3493182 - 003252ECS02KT1 - Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Street Shield Skid Plate - ECS - Audi

Replacement hardware kit for your ECS Street Shield Skid Plate 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3493182
Mfg#:
003252ECS02KT1
In Stock
ON SALE! SAVE 25%
$210.26

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

$157.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Housing Hook-Up - Silver Anodized

ES#3137379 - 005887ECS01KT2 - Billet Aluminum Oil Filter Housing Hook-Up - Silver Anodized - 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 Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3137379
Mfg#:
005887ECS01KT2
In Stock
ON SALE!
$137.99

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

$135.97 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Transmission Street Shield Skid Plate Hardware Kit

ES#3659419 - n90610602KT - Transmission Street Shield Skid Plate Hardware Kit - Replacement hardware kit for your ECS Transmission Street Shield - Assembled By ECS - Audi

Replacement hardware kit for your ECS Transmission Street Shield 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659419
Mfg#:
N90610602KT
In Stock
ON SALE! SAVE 23%
$173.99

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

$133.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Strut Tower Cover Kit - Left

ES#4783266 - 8w0806583cKT - Front Strut Tower Cover Kit - Left - Keep your engine bay clean and looking good! - Genuine Volkswagen Audi - Audi

Keep your engine bay clean and looking good!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4783266
Mfg#:
8W0806583CKT
Ships in 3 Business Days
$40.99

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

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Essential Performance Parts & Upgrades

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