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Audi S4 Engine Parts & Accessories

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IE ProCore Performance Cast Downpipe - B9 S4/S5

ES#4708493 - IEEXCK6 - IE ProCore Performance Cast Downpipe - B9 S4/S5 - Check-Engine Light free! An emissions-friendly approach to exhaust upgrades! - Integrated Engineering - Audi

Check-Engine Light free! An emissions-friendly approach to exhaust upgrades!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4708493
Mfg#:
IEEXCK6
Ships in 5 Business Days
$2874.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lower Intake Manifold Gasket - Priced Each

ES#3426845 - 079129717B - Lower Intake Manifold Gasket - Priced Each - Seals the intake manifolds to the cylinder heads - Elring - Audi

Seals the intake manifolds to the cylinder heads 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3426845
Mfg#:
079129717B
In Stock
$5.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Midpipe Exhaust Upgrade

ES#4489116 - IEEXCK4 - IE Midpipe Exhaust Upgrade - Aggressive sound, quality finish, reliable operation, straightforward install, and affordable fun. - Integrated Engineering - Audi

Aggressive sound, quality finish, reliable operation, straightforward install, and affordable fun.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4489116
Mfg#:
IEEXCK4
In Stock
$804.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pressure Regulator - 4 Bar

ES#1073 - 0280160575sj - Fuel Pressure Regulator - 4 Bar - Commonly used in performance applications - Bosch - Audi Volkswagen

Commonly used in performance applications We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1073
Mfg#:
0280160575SJ
In Stock
$51.99

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

$45.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4818410 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen

Common cure for DTC P0441 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818410
Mfg#:
037906283C
In Stock
ON SALE! SAVE 15%
$45.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 S4/S5 Pre-Facelift Luft-Technik Performance Supercharger Intercooler Kit - Without ADS

ES#4305066 - 025496ECS01KT2 - Audi B8 S4/S5 Pre-Facelift Luft-Technik Performance Supercharger Intercooler Kit - Without ADS - Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. - ECS - Audi

Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you. 10X Entries Into Our F80 M3 Sweepstakes

Fits B8 Pre-Facelift Models Without ADS

Brand:
ECS - Corporate Logo
ES#:
4305066
Mfg#:
025496ECS01KT2
In Stock
ON SALE! SAVE 26%
$938.99

This product was last offered at the strikethrough price on
06-13-2026

$698.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Service Kit

ES#3699157 - 079129717dKT - Oil Separator Service Kit - Comprehensive kit includes new oil separator, supercharger gaskets (qty 6), and vent tube o-rings (qty 2). - Genuine Volkswagen Audi - Audi

Comprehensive kit includes new oil separator, supercharger gaskets (qty 6), and vent tube o-rings (qty 2). Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3699157
Mfg#:
079129717DKT
In Stock
$357.99

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

$289.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bosch Ignition Service Kit

ES#4475329 - 06M905606F7KT - Bosch Ignition Service Kit - Includes six Bosch coil packs and OEM spark plugs to service your ignition system - Assembled By ECS - Audi

Includes six Bosch coil packs and OEM spark plugs to service your ignition system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4475329
Mfg#:
06M905606F7KT
In Stock
$391.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Waste Gate Frequency Control N75 Valve

ES#4818507 - 078906283B - Waste Gate Frequency Control N75 Valve - Controls the boost pressure on the turbocharger system - Bremmen Parts - Audi

Controls the boost pressure on the turbocharger system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818507
Mfg#:
078906283B
In Stock
ON SALE! SAVE 15%
$91.99

This product was last offered at the strikethrough price on
07-06-2026

$78.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi 3.0T Carbon Fiber Engine Cover Kit - Red

ES#3623934 - 015339ecs02aKT - Audi 3.0T Carbon Fiber Engine Cover Kit - Red - Add a touch of red carbon/kevlar to your stock engine cover! - ECS - Audi

Add a touch of red carbon/kevlar to your stock engine cover! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3623934
Mfg#:
015339ECS02AKT
In Stock
ON SALE!
$410.99

This product was last offered at the strikethrough price on
06-13-2026

$390.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel-It! FLEX FUEL KIT For AUDI S4

ES#4499539 - FIFFKB8S4 - Fuel-It! FLEX FUEL KIT For AUDI S4 - If you're running E85 or ethanol mixes in your Audi, you need this kit! - Fuel-It! - Audi

If you're running E85 or ethanol mixes in your Audi, you need this kit!

Brand:
Fuel-It! - Corporate Logo
ES#:
4499539
Mfg#:
FIFFKB8S4
Ships in 2 Business Days
$454.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hall Sender - Priced Each

ES#1876 - 058905161B - Hall Sender - Priced Each - Measures cam position and relays it to the ECU - Bosch - Audi Volkswagen

Measures cam position and relays it to the ECU We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1876
Mfg#:
058905161B
In Stock
$66.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE 4 BAR MAP Sensors

ES#4920867 - IEELVZ1 - IE 4 BAR MAP Sensors - A direct drop-in replacement when combined with the proper software. - Integrated Engineering - Audi

A direct drop-in replacement when combined with the proper software.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4920867
Mfg#:
IEELVZ1
In Stock
$234.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Front Mount Intercooler System - B9 S4/S5 3.0T

ES#3613172 - IC100023 - APR Front Mount Intercooler System - B9 S4/S5 3.0T - Massive front mounted upgrade that dramatically reduces intake air temperature (IAT), minimizes heat soak, and provides increased performance! - APR - Audi

Massive front mounted upgrade that dramatically reduces intake air temperature (IAT), minimizes heat soak, and provides increased performance! Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3613172
Mfg#:
IC100023
Ships in 3 Business Days
ON SALE! SAVE 10%
$1499.99

This product was last offered at the strikethrough price on
09-28-2026

$1349.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Chain Tensioner - Left

ES#4781430 - 06E109217AM - Upper Timing Chain Tensioner - Left - Applies tension to the upper left timing chain - Bremmen Parts - Audi

Applies tension to the upper left timing chain 10X Entries Into Our F80 M3 Sweepstakes

From the 2013 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4781430
Mfg#:
06E109217AM
Ships on Nov 16, 2026
ON SALE! SAVE 20%
$120.99

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

$96.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Supercharger Belt

ES#3677878 - 06E903137AB - Performance Kevlar Reinforced Supercharger Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3677878
Mfg#:
06E903137AB
In Stock
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

Let us help you find the parts that fit your Audi

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

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