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Audi S4 Most Popular Parts

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BFI B8 Engine Mount Kit (W/Trans Insert) - Stage 2

ES#3991436 - BFI8KSTG2-KIT - BFI B8 Engine Mount Kit (W/Trans Insert) - Stage 2 - Total solution for replacing and upgrading your notoriously weak stock engine mounts for your B8 / B8.5 Audi. - Black Forest Industries - Audi

Total solution for replacing and upgrading your notoriously weak stock engine mounts for your B8 / B8.5 Audi.

Brand:
Black Forest Industries - Corporate Logo
ES#:
3991436
Mfg#:
BFI8KSTG2-KIT
Ships on Dec 1, 2026
$759.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Front Control Arm Kit

Includes all front control arms and hardware - plus tie rod ends and sway bar end links! We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3098369
Mfg#:
A004AKIT
Ships in 1 Business Day
$379.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Windshield Washer Pump

ES#322338 - 1K6955651 - Windshield Washer Pump - Keep your windshield clean - Genuine Volkswagen Audi - Audi Volkswagen

Keep your windshield clean Avant models only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
322338
Mfg#:
1K6955651
In Stock
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$103.99

This product was last offered at the strikethrough price on
10-05-2026

$94.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Exact-Fit Stainless Steel Brake Lines - Four Piece

ES#538 - B5S4SSBLK-REAR - Rear Exact-Fit Stainless Steel Brake Lines - Four Piece - Mid & Rear set of DOT-compliant lines for an improved pedal feel - ECS - Audi

Mid & Rear set of DOT-compliant lines for an improved pedal feel 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
538
Mfg#:
B5S4SSBLK-REAR
In Stock
$148.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil (0w-20) - 1 Quart

ES#2847836 - 11804 - Engine Oil (0w-20) - 1 Quart - Designed to provide the highest protection, efficiency, cleanliness, and superior drain intervals - Redline - Audi Volkswagen

Designed to provide the highest protection, efficiency, cleanliness, and superior drain intervals

Brand:
Redline - Corporate Logo
ES#:
2847836
Mfg#:
11804
In Stock
$18.99 USD
Free Shipping
on orders $49 and up

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
Ships in 3 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Performance Brake Service Kit - Tru-Float Scalloped

ES#4057327 - 023940EKT - Rear Performance Brake Service Kit - Tru-Float Scalloped - Comprehensive kit includes Tru-Float rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece Tru-Float scalloped rotors and EBC Yellow Brake Pads! - Assembled By ECS - Audi

Comprehensive kit includes Tru-Float rotors, pads, sensor, and set screws - Upgrade your brake system with ECS 2-piece Tru-Float scalloped rotors and EBC Yellow Brake Pads! 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
4057327
Mfg#:
023940EKT
In Stock
ON SALE! SAVE 32%
$1110.99

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

$759.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Absorber - Right

Restore your factory ride quality! For vehicles with Dynamic Ride Control

Brand:
Sachs - Corporate Logo
ES#:
4940382
Mfg#:
8F0513026A
Back Ordered
$758.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Shock Absorber - Left

Restore your factory ride quality! For vehicles with Dynamic Ride Control

Brand:
Sachs - Corporate Logo
ES#:
4940381
Mfg#:
8F0513025A
Back Ordered
$758.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fog Light Assembly - Left

ES#2778059 - 8T0941699B - Fog Light Assembly - Left - Replace your damaged fog lamp assembly - TYC - Audi

Replace your damaged fog lamp assembly

Brand:
TYC - Corporate Logo
ES#:
2778059
Mfg#:
8T0941699B
Ships in 1 Business Day
$75.99

This product was last offered at the strikethrough price on
10-08-2026

$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Fuel Pressure Regulator & Gauge Kit

ES#5705 - 000198501BLK - Adjustable Fuel Pressure Regulator & Gauge Kit - Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi - ECS - Audi Volkswagen

Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 25psi - 75psi 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Only fits 2.7T's with rubber fuel lines. Some 2.7T's came with aluminum braided fuel lines & this kit will NOT fit those specific application.

Brand:
ECS - Corporate Logo
ES#:
5705
Mfg#:
000198501BLK
In Stock
$265.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Manual Transmission Service Kit

ES#3647785 - n0438092ktKT - Manual Transmission Service Kit - Featuring 3 Quarts of Redline MT-90 fluid & OEM Drain & Fill Plugs to service your transmission. M24x1.5 - Assembled By ECS - Audi Volkswagen

Featuring 3 Quarts of Redline MT-90 fluid & OEM Drain & Fill Plugs to service your transmission. M24x1.5 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647785
Mfg#:
N0438092KTKT
In Stock
$105.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

A/C Condenser Fan

ES#514106 - 4B3959457 - A/C Condenser Fan - 200W - 280MM fan located in front of the AC condenser - ACM - Audi

200W - 280MM fan located in front of the AC condenser

Brand:
ACM - Corporate Logo
ES#:
514106
Mfg#:
4B3959457
Ships in 2 Business Days
$266.60

This product was last offered at the strikethrough price on
10-31-2026

$252.47 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Core Support

ES#4460361 - 8W0805594E - Radiator Core Support - Houses the radiator and condenser while providing front end support - Genuine Volkswagen Audi - Audi

Houses the radiator and condenser while providing front end support

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4460361
Mfg#:
8W0805594E
Ships in 1-2 days
13% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$873.99

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

$757.00 USD
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ Supercharger Belt - 1370mm

ES#5388895 - 034-145-Z059 - 034Motorsport Dynamic+ Supercharger Belt - 1370mm - Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. - 034Motorsport - Audi

Precision-manufactured to strict OEM dimensional specifications with advanced materials. High heat resistance to ensure long-term durability in extreme environments. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
5388895
Mfg#:
034-145-Z059
In Stock
$28.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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