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Audi S4 Most Popular Parts

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Rear Brake Rotors - Pair (330x22)

ES#2597382 - 4H0615601HZIMKT - Rear Brake Rotors - Pair (330x22) - Featuring Zimmermann's "Coat Z" coating for corrosion resistance - Zimmermann - Audi
ECS Tuning recommends this product.

Featuring Zimmermann's "Coat Z" coating for corrosion resistance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Zimmermann - Corporate Logo
ES#:
2597382
Mfg#:
4H0615601HZIMKT
In Stock
$185.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Charge Pipe Kit

ES#4685216 - IETPCK6 - Performance Aluminum Charge Pipe Kit - Eliminate factory bottlenecks and weak plastic materials for increased flow and strength. - Integrated Engineering - Audi

Eliminate factory bottlenecks and weak plastic materials for increased flow and strength. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4685216
Mfg#:
IETPCK6
In Stock
$447.99 USD
Free Shipping

Performance Lightweight Flywheel Kit

ES#2826499 - 003886ecs01aKT - Performance Lightweight Flywheel Kit - A single mass flywheel engineered to handle more power, offering a 38% reduction in weight! - ECS - Audi

A single mass flywheel engineered to handle more power, offering a 38% reduction in weight! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2826499
Mfg#:
003886ECS01AKT
Back Ordered
Auto Notify
ON SALE! SAVE 25%
$1649.99

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

$1237.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front RedStuff Performance Brake Pad Set

ES#4031309 - DP32277C - Front RedStuff Performance Brake Pad Set - High performance street pad featuring Kevlar technology. - EBC - Audi

High performance street pad featuring Kevlar technology. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
EBC - Corporate Logo
ES#:
4031309
Mfg#:
DP32277C
In Stock
$203.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" Style 030 Wheels - Set Of Four

ES#2713045 - 030-9 - 18" Style 030 Wheels - Set Of Four - 18"x8" ET35 5x112 66.6CB - Matte Black - Alzor - Audi MINI

18"x8" ET35 5x112 66.6CB - Matte Black affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Front wheels require an 10mm spacer to clear the brake calipers

Brand:
Alzor - Corporate Logo
ES#:
2713045
Mfg#:
030-9
In Stock
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vent Hose

ES#3561980 - 06M103210EB - Vent Hose - Restores the proper flow of crankcase gases, keeping your intake valves cleaner and your emissions systems happy - Genuine Volkswagen Audi - Audi

Restores the proper flow of crankcase gases, keeping your intake valves cleaner and your emissions systems happy affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3561980
Mfg#:
06M103210EB
In Stock
15% off MSRP

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

$170.00

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

$144.84 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 1800 Automatic Transmission Fluid - 20 Liters

ES#4375742 - 20034 - Top Tec 1800 Automatic Transmission Fluid - 20 Liters - Fully synthetic leading-edge, high-performance automatic transmission fluid - Liqui-Moly - Audi BMW Volkswagen

Fully synthetic leading-edge, high-performance automatic transmission fluid affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4375742
Mfg#:
20034
In Stock
ON SALE!
$169.99

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

$161.49 USD
Free Shipping

Front & Rear Brake Pad Kit - EBC RedStuff

ES#4031339 - dp32254cKT - Front & Rear Brake Pad Kit - EBC RedStuff - High performance street pad featuring Kevlar technology. - EBC - Audi

High performance street pad featuring Kevlar technology. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
EBC - Corporate Logo
ES#:
4031339
Mfg#:
DP32254CKT
In Stock
$348.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Performance Cast Downpipe

ES#4473979 - IEEXCK3 - IE Performance Cast Downpipe - Features a TIG-welded 304 stainless and investment cast body and offers gains up to 45HP & 41TQ - Integrated Engineering - Audi

Features a TIG-welded 304 stainless and investment cast body and offers gains up to 45HP & 41TQ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4473979
Mfg#:
IEEXCK3
In Stock
$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit - With Service Tools

ES#4362455 - 079109229KT13 - Timing Chain Kit - With Service Tools - Includes the upgraded RS4 lower metal guide rail, OEM, iwis and Bremmen chains, tensioners, and guides - The essentials necessary to get the job done! - Assembled By ECS - Audi

Includes the upgraded RS4 lower metal guide rail, OEM, iwis and Bremmen chains, tensioners, and guides - The essentials necessary to get the job done! 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#:
4362455
Mfg#:
079109229KT13
In Stock at Vendor
ON SALE! SAVE 26%
$1604.99

This product was last offered at the strikethrough price on
01-03-2026

$1181.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Adjustable Metal Extended Slave Cylinder

ES#4819123 - SLV01A0 - Adjustable Metal Extended Slave Cylinder - THE solution to the B8/8.5 Push Clutch to Start issue - Includes 3 different rods (stock, extended, very extended) - JXB Performance - Audi

THE solution to the B8/8.5 Push Clutch to Start issue - Includes 3 different rods (stock, extended, very extended) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JXB Performance - Corporate Logo
ES#:
4819123
Mfg#:
SLV01A0
In Stock
$239.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front & Rear Brake Service Kit

ES#4030883 - 025997ECS0622KT1 - Performance Front & Rear Brake Service Kit - Featuring ECS V5 Drilled/Dimpled & Slotted rotors and ECS DD23 Daily Driver ceramic pads - Assembled By ECS - Audi

Featuring ECS V5 Drilled/Dimpled & Slotted rotors and ECS DD23 Daily Driver ceramic pads 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#:
4030883
Mfg#:
025997ECS0622KT1
Ships in 1 Business Day
ON SALE! SAVE 13%
$1021.99

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

$892.81 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Baffled Oil Catch Can System - Audi B8 S4/S5 3.0T

ES#3142968 - 016632ecs01KT - Performance Baffled Oil Catch Can System - Audi B8 S4/S5 3.0T - Keep your B8 S4/S5 3.0T intake tract clean and carbon free - ECS - Audi

Keep your B8 S4/S5 3.0T intake tract clean and carbon free affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3142968
Mfg#:
016632ECS01KT
In Stock
ON SALE! SAVE 20%
$668.99

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

$535.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Springs - Set

ES#3187941 - 50357 - Sport Springs - Set - Finally, A performance lowering spring for your B9 chassis Audi - Offering unrivaled comfort and performance - H&R - Audi

Finally, A performance lowering spring for your B9 chassis Audi - Offering unrivaled comfort and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Average lowering of .80" front and rear

Brand:
H&R - Corporate Logo
ES#:
3187941
Mfg#:
50357
In Stock
$286.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Super Sport Springs - Set

ES#1303564 - 50361-77 - Super Sport Springs - Set - Aggressive looks and ultimate handling. Average lowering of 2.0"F 2.0"R - H&R - Audi

Aggressive looks and ultimate handling. Average lowering of 2.0"F 2.0"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1303564
Mfg#:
50361-77
In Stock
$257.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Intercooler Kit

ES#4475579 - 06e145621sKT - Supercharger Intercooler Kit - Everything needed to replace failed heat exchangers. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Everything needed to replace failed heat exchangers. 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#:
4475579
Mfg#:
06E145621SKT
Ships in 2 Business Days
$1492.41 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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