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Audi S4 Most Popular Parts

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Front HPS Performance Brake Pad Set

ES#2092631 - HB641F.696 - Front HPS Performance Brake Pad Set - One of the best-selling all around brake pads - Hawk - Audi
ECS Tuning recommends this product.

One of the best-selling all around brake pads

Brand:
Hawk - Corporate Logo
ES#:
2092631
Mfg#:
HB641F.696
In Stock at Vendor
10% off MSRP

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

$222.99

This product was last offered at the strikethrough price on
11-05-2026

$200.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Lower Control Arm Kit

ES#3183552 - 034-401-1021KT - Density Line Lower Control Arm Kit - Includes 034Motorsport Density line lower control arms & necessary hardware - Assembled By ECS - Audi

Includes 034Motorsport Density line lower control arms & necessary hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183552
Mfg#:
034-401-1021KT
Ships in 4 Business Days
$525.96

This product was last offered at the strikethrough price on
08-12-2026

$501.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat - 87C

ES#2598454 - 078121113F - Thermostat - 87C - Prevent overheating and premature engine wear - Vaico - Audi Volkswagen

Prevent overheating and premature engine wear We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2598454
Mfg#:
078121113F
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit

ES#4005065 - 079109229kt15KT - Timing Chain Kit - The essentials necessary to get the job done - Assembled By ECS - Audi

The essentials necessary to get the job done 10X Entries Into Our F80 M3 Sweepstakes
For cabriolet models only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4005065
Mfg#:
079109229KT15KT
Ships on Dec 2, 2026
ON SALE!
$1092.99

This product was last offered at the strikethrough price on
10-20-2026

$1001.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Performance Snub Mount With Bracket

ES#3447962 - 034-509-2009 - Performance Snub Mount With Bracket - Greatly reduces unwanted engine movement w/o excess vibration - 034Motorsport - Audi

Greatly reduces unwanted engine movement w/o excess vibration 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3447962
Mfg#:
034-509-2009
In Stock
$125.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Grille Accent Set - Audi B9 A4/S4

ES#3420220 - 024314ECS01 - Carbon Fiber Grille Accent Set - Audi B9 A4/S4 - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling 10X Entries Into Our F80 M3 Sweepstakes

Fits up to 2019 model year with *pre-facelift* front bumpers

Brand:
ECS - Corporate Logo
ES#:
3420220
Mfg#:
024314ECS01
In Stock
ON SALE! SAVE 62%
$519.99

This product was last offered at the strikethrough price on
05-14-2026

$200.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Cat-Back Exhaust System - Resonated

ES#3514254 - 764440 - Sport & Sound Cat-Back Exhaust System - Resonated - Stainless steel resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel resonated cat-back exhaust system with dual round, polished tips

Brand:
Supersprint - Corporate Logo
ES#:
3514254
Mfg#:
764440
In Stock
ON SALE! SAVE 63%
$2734.99

This product was last offered at the strikethrough price on
10-19-2026

$1000.00 USD
Free Shipping

Carbon Fiber Rear Valance w/Rear Splitter

ES#3142795 - AS410-CFRVP - Carbon Fiber Rear Valance w/Rear Splitter - Delivers an unmatched combination of aggressiveness and luxury elegance - Deval - Audi

Delivers an unmatched combination of aggressiveness and luxury elegance Fits up to the 2012 model year (pre-facelift)

Brand:
Deval - Corporate Logo
ES#:
3142795
Mfg#:
AS410-CFRVP
Special Order: No Guaranteed ETA
$1000.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Inverted-Damper Performance Coilover System - Audi B8/B8.5

ES#4900307 - 026116LA01 - Inverted-Damper Performance Coilover System - Audi B8/B8.5 - Increases rigidity and reduces flex under cornering and braking loads - ECS - Audi

Increases rigidity and reduces flex under cornering and braking loads 10X Entries Into Our F80 M3 Sweepstakes
Vehicles equipped with Electronic Damping Control (EDC) will lose shock dampening and receive a system error code with coilover systems.

Brand:
ECS - Corporate Logo
ES#:
4900307
Mfg#:
026116LA01
In Stock
ON SALE! SAVE 23%
$1299.99

This product was last offered at the strikethrough price on
08-14-2026

$999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hood

ES#2576192 - 8E0823029 - Hood - Keep your exterior clean - Genuine Volkswagen Audi - Audi

Keep your exterior clean Sedan and Avant models only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2576192
Mfg#:
8E0823029
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.

$1153.99

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

$999.99 USD
This product is lifetime replacement eligible Lifetime Replacement

TGK Motorsport Front And Rear Sway Bar Kit

ES#5477703 - TGK-0412-03 - TGK Motorsport Front And Rear Sway Bar Kit - Includes 28MM Front and 25.4MM Rear Sway Bar. - TGK Motorsport - Audi

Includes 28MM Front and 25.4MM Rear Sway Bar.

Brand:
TGK Motorsport - Corporate Logo
ES#:
5477703
Mfg#:
TGK-0412-03
Ships in 6 Business Days
$499.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#3419449 - 06E906265AJ - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - NTK - Audi

Keep your engine running efficiently Fits the left and right position

Brand:
NTK - Corporate Logo
ES#:
3419449
Mfg#:
06E906265AJ
Ships in 2 Business Days
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set

ES#2724018 - 077198025BKT8 - Valve Cover Gasket Set - Left and Right side set - Elring - Audi

Left and Right side set 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to VIN 8E-5-118000, split is in the 2005 model year

Brand:
Elring - Corporate Logo
ES#:
2724018
Mfg#:
077198025BKT8
In Stock
$112.99

This product was last offered at the strikethrough price on
06-05-2026

$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Crankshaft Seal

ES#2918844 - 079103051G - Front Crankshaft Seal - Keep your engine fresh and leak free - Victor Reinz - Audi

Keep your engine fresh and leak free From VIN 8E-4-163756, split is in the 2004 model year

Brand:
Victor Reinz - Corporate Logo
ES#:
2918844
Mfg#:
079103051G
In Stock
$50.99

This product was last offered at the strikethrough price on
11-04-2026

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

Front Outer CV Joint Boot Kit - Priced Each

ES#3108026 - 3B0498203F - Front Outer CV Joint Boot Kit - Priced Each - Stop losing CV grease and extend axle joint life - GKN Drivetech - Audi Volkswagen

Stop losing CV grease and extend axle joint life

Brand:
GKN Drivetech - Corporate Logo
ES#:
3108026
Mfg#:
3B0498203F
In Stock
$23.99

This product was last offered at the strikethrough price on
10-26-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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