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Audi A4 Essential Performance Parts & Upgrades

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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 For Our 25th Anniversary 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

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 For Our 25th Anniversary 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 For Our 25th Anniversary 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

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 For Our 25th Anniversary 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

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 For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659419
Mfg#:
N90610602KT
Ships in 4 Business Days
ON SALE! SAVE 24%
$173.99

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

$132.44 USD
Free Shipping
on orders $49 and up
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 For Our 25th Anniversary 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

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 1 Business Day
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/B8.5 A4 Left Side Engine Bay Cover - Matte Black

ES#4335427 - 007662la01KT - Audi B8/B8.5 A4 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#:
4335427
Mfg#:
007662LA01KT
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
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 For Our 25th Anniversary 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 For Our 25th Anniversary 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 For Our 25th Anniversary 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

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 2 Business Days
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Kohlefaser Luft-Technik Intake System Reflect-A-Gold Kit

ES#3221001 - 020870ecs01KT - Kohlefaser Luft-Technik Intake System Reflect-A-Gold Kit - Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System - ECS - Audi

Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3221001
Mfg#:
020870ECS01KT
Ships on Sep 17, 2026
ON SALE! SAVE 25%
$46.99

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

$35.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thrust Arm Monoball Upgrade Kit - Front Lower, Inner & B9 A4 / S4 Lowering Spring Set

ES#4876603 - 051204LA01EBKT - Thrust Arm Monoball Upgrade Kit - Front Lower, Inner & B9 A4 / S4 Lowering Spring Set - Eliminate deflection caused by stock rubber bushings and Dramatically improve looks and handling with and average lowering up to 1.5" front and rear. - Enthusiast Bundles - Audi

Eliminate deflection caused by stock rubber bushings and Dramatically improve looks and handling with and average lowering up to 1.5" front and rear. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876603
Mfg#:
051204LA01EBKT
In Stock
ON SALE! SAVE 13%
$747.46

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

$652.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Shield Hardware Kit

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

Audi B8 A4 2.0T Dual Exit Non Resonated Valved Cat Back Exhaust System & Luft-Technik Intake System

ES#4751097 - 003353ECSEBKT - Audi B8 A4 2.0T Dual Exit Non Resonated Valved Cat Back Exhaust System & Luft-Technik Intake System - Transform the sound and performance of your vehicle with a cat-back and a Luft-Technik Intake System - Enthusiast Bundles - Audi

Transform the sound and performance of your vehicle with a cat-back and a Luft-Technik Intake System Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751097
Mfg#:
003353ECSEBKT
Ships in 8 Business Days
ON SALE! SAVE 22%
$2057.94

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

$1599.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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