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Audi S4 Essential Performance Parts & Upgrades

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Carbon Fiber Engine Cover

ES#4265528 - 034-1ZZ-1004 - Carbon Fiber Engine Cover - Designed to tastefully complement the factory engine bay with a beautiful carbon fiber weave that is perfectly matched to the X34 Carbon Fiber Air Intake. - 034Motorsport - Audi

Designed to tastefully complement the factory engine bay with a beautiful carbon fiber weave that is perfectly matched to the X34 Carbon Fiber Air Intake. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through the 2019 model year only

Brand:
034Motorsport - Corporate Logo
ES#:
4265528
Mfg#:
034-1ZZ-1004
Ships in 2 Business Days
$461.00 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
GMG Motorsports - Corporate Logo
ES#:
3089102
Mfg#:
0002S-AU1-50
In Stock
Limited Qty Sale
$79.99

This product was last offered at the strikethrough price on
05-25-2026

$71.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 S4 Carbon Fiber Left Side Engine Bay Cover - Red Carbon/Kevlar

ES#3638701 - 023149ECS02-02KT - B8 S4 Carbon Fiber Left Side Engine Bay Cover - Red Carbon/Kevlar - Cover up unsightly under hood components with red carbon fiber and kevlar style! - ECS - Audi

Cover up unsightly under hood components with red carbon fiber and kevlar style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3638701
Mfg#:
023149ECS02-02KT
Ships on Jun 25, 2026
Auto Notify
ON SALE! SAVE 10%
$229.99

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

$206.99 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3659419
Mfg#:
N90610602KT
In Stock
ON SALE! SAVE 25%
$173.99

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

$130.94 USD
Free Shipping
on orders $49 and up
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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

Street Shield Skid Plate Hardware Kit

ES#3493184 - 003252ECS02KT2 - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3493184
Mfg#:
003252ECS02KT2
In Stock
ON SALE! SAVE 20%
$189.10

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

$151.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet HPFP Fuel Pump Cover - Black

ES#4620213 - JHM-079127025-07 - Billet HPFP Fuel Pump Cover - Black - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4620213
Mfg#:
JHM-079127025-07
Ships in 10 Business Days
$59.99 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876603
Mfg#:
051204LA01EBKT
In Stock
ON SALE! SAVE 20%
$747.46

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

$599.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Aero Tunnel Shield - (NO LONGER AVAILABLE) *Scratch And Dent*

ES#5426241 - 023780ECS03 - Aero Tunnel Shield - (NO LONGER AVAILABLE) *Scratch And Dent* - Manual/DSG - Scratch & Dent - Audi

Manual/DSG ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Scratch & Dent - Corporate Logo
ES#:
5426241
Mfg#:
023780ECS03
In Stock
Limited Qty Sale
$245.99

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

$194.99 USD

More About Essential Performance Parts & Upgrades

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