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Audi B5 A4/S4 - Friday the 13% Off thirteen products

It's Friday the 13th and we've conjured up some deals at ECS Tuning on thirteen(ish) select items for your Audi, with prices slashed 13%!

Our specialists have carefully selected a slew of popular performance products to whip your Audi into shape for that annual summertime trek to Camp Crystal Lake.

No black cats, broken mirrors, or bad luck here, just deals that won't last!
13% off 5/13 through 5/15.


13th | 13% | 13

Fits:
Audi B5 A4/S4 1996-2002

Performance Rear Differential Mount - Audi B5 A4/S4
Increase drivetrain rigidity and response!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 2730494
Mfg#: 003248ECS01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 30%
$238.99

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

$167.29 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Performance Snub Mount
Reduce driveline lash with a full polyurethane mount
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4 models
Brand: ECS - Corporate Logo
ES#: 2597993
Mfg#: 001577ECS01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 40%
$76.99

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

$46.19 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Performance Snub Mount
Reduce driveline lash with a full polyurethane mount
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 A4 1.8T models
Brand: ECS - Corporate Logo
ES#: 2597997
Mfg#: 001578ECS01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 30%
$74.99

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

$52.49 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ECS Performance Engine Mount Kit - Audi B5 S4
Performance engine mounts to increase drivetrain rigidity
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4 models
Brand: ECS - Corporate Logo
ES#: 2708159
Mfg#: 000805ECS01AKT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE
$350.99

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

$333.44 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#4840231
Street Shield Aluminum Skid Plate Kit - Audi B5 S4 - (NO LONGER AVAILABLE)
Protect your vehicle's oil pan and undercarriage components with our heavy duty aluminum skid plate
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4 models
Brand: ECS - Corporate Logo
ES#: 2864870
Mfg#: 003252ECS02AKT4
No longer available
This product has been superseded to ES#4840231
B5 A4 Street Shield Aluminum Skid Plate Kit - (NO LONGER AVAILABLE)
Protect your vehicle's oil pan and undercarriage components with our heavy duty aluminum skid plate
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 A4 models
Brand: ECS - Corporate Logo
ES#: 2845866
Mfg#: 003252ECS02AKT
No longer available
RS4 Mesh Style Upper Grille - Black
Add a sleek Euro look with this black grille
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits B5 chassis Audi models
Brand: ECS - Corporate Logo
ES#: 2575591
Mfg#: YT601201PH
No longer available
ECS Vent Pod Boost Gauge Kit - (NO LONGER AVAILABLE)
Vent-mounted digital boost gauge for B5 S4 looks factory installed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 S4 models
Brand: ECS - Corporate Logo
ES#: 2664824
Mfg#: 001576ECS01KT
No longer available
ECS Vent Pod Boost Gauge Kit - (NO LONGER AVAILABLE)
Vent-mounted digital boost gauge for B5 A4 looks factory installed
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits B5 A4 1.8T models
Brand: ECS - Corporate Logo
ES#: 2681639
Mfg#: 001576ECS02KT
No longer available
Billet Engine Oil Dipstick & Funnel - Black Anodized Handle - (NO LONGER AVAILABLE)
A more durable and aesthetically pleasing addition to your engine bay
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits A4 models with AWM engine code only
Brand: ECS - Corporate Logo
ES#: 2975675
Mfg#: 009380ECS0102KT2
No longer available
Billet Engine Oil Dipstick & Funnel - Silver Anodized Handle - (NO LONGER AVAILABLE)
A more durable and aesthetically pleasing addition to your engine bay
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits A4 models with AWM engine code only
Brand: ECS - Corporate Logo
ES#: 2975676
Mfg#: 009380ECS0103KT2
No longer available
Billet Engine Oil Dipstick & Funnel - Polished Handle - (NO LONGER AVAILABLE)
A more durable and aesthetically pleasing addition to your engine bay
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits A4 models with AWM engine code only
Brand: ECS - Corporate Logo
ES#: 2975674
Mfg#: 009380ECS0101KT2
No longer available
Complete Front Control Arm Kit
Includes all front control arms and hardware - plus tie rod ends and sway bar end links! - 8D0498998
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Brand: Vaico - Corporate Logo
ES#: 2609119
Mfg#: 8D0498998

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock at Vendor
$392.99 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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