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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Parts & Accessories

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Audi EA839 3.0T W.2 ECU Tune

ES#4715345 - 05-839-00132-1KT - Audi EA839 3.0T W.2 ECU Tune - Increase of +81 Horsepower, and +126 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - Audi

Increase of +81 Horsepower, and +126 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!

Brand:
Weistec - Corporate Logo
ES#:
4715345
Mfg#:
05-839-00132-1KT
In Stock at Vendor
$1599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

SuperDuper Air Filter, 5" Inlet

ES#4696150 - 034-108-B029 - SuperDuper Air Filter, 5" Inlet - A replacement for 034's popular S34 Intake System - 034Motorsport - Audi

A replacement for 034's popular S34 Intake System 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4696150
Mfg#:
034-108-B029
Back Ordered
$114.00 USD
Free Shipping

Audi B9 S4/S5 3.0T Kohlefaser Luft-Technik Intake System

ES#3545247 - 023796ECS04 - Audi B9 S4/S5 3.0T Kohlefaser Luft-Technik Intake System - Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake - ECS - Audi

Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3545247
Mfg#:
023796ECS04
In Stock
ON SALE! SAVE 20%
$998.99

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

$796.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4690984 - 06M121115K - Thermostat Housing - Common point of failure for the cooling system. - Vernet - Audi

Common point of failure for the cooling system.

Brand:
Vernet - Corporate Logo
ES#:
4690984
Mfg#:
06M121115K
Ships in 1 Business Day
$70.99

This product was last offered at the strikethrough price on
05-07-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Serpentine Belt

ES#3181973 - 06M903137T - Serpentine Belt - Replace your worn belt today before it breaks - Genuine Volkswagen Audi - Audi

Replace your worn belt today before it breaks

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181973
Mfg#:
06M903137T
Ships in 1-2 days
6% off MSRP

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

$76.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Oil Filter Housing

ES#5434071 - 06M115401LM - Aluminum Oil Filter Housing - Manufactured from cast aluminum instead of plastic for improved durability. - Bremmen Parts - Audi

Manufactured from cast aluminum instead of plastic for improved durability. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5434071
Mfg#:
06M115401LM
In Stock
ON SALE! SAVE 15%
$166.99

This product was last offered at the strikethrough price on
09-16-2026

$141.94 USD
Free Shipping
on orders $49 and up

Audi B9 3.0T S4 S5 Catted Downpipe

ES#4905571 - B930TDPC - Audi B9 3.0T S4 S5 Catted Downpipe - Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note - ARM Motorsports - Audi

Increased Power and Torque, Massive 6.5" Design, Faster Turbo Spool, and Improved Exhaust Note

Brand:
ARM Motorsports - Corporate Logo
ES#:
4905571
Mfg#:
B930TDPC
Ships in 2 Business Days
$779.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 S4/S5 Eventuri Intake System - Black Carbon

ES#3604844 - EVE-B9S5-CF-INT - Audi B9 S4/S5 Eventuri Intake System - Black Carbon - Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style! - Eventuri - Audi

Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style!

Brand:
Eventuri - Corporate Logo
ES#:
3604844
Mfg#:
EVE-B9S5-CF-INT
Ships in 5 Business Days
$1550.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High-Pressure Fuel Pump Kit

ES#4820947 - 06M127026PKT1 - High-Pressure Fuel Pump Kit - Includes HPFP, O-ring, Cam follower, and hardware - Assembled By ECS - Audi

Includes HPFP, O-ring, Cam follower, and hardware 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 06/15/2020

Brand:
Assembled By ECS - Corporate Logo
ES#:
4820947
Mfg#:
06M127026PKT1
Ships in 1-2 days
$775.99

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

$774.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Pistons Head - Priced Each

ES#3181893 - 06M107065AB - Complete Pistons Head - Priced Each - Cylinders 4-6 - Genuine Volkswagen Audi - Audi

Cylinders 4-6 For pistons stamped with 06M 107 099 or 06M 107 099 C

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181893
Mfg#:
06M107065AB
Ships in 1-2 days
7% off MSRP

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

$164.99

This product was last offered at the strikethrough price on
06-16-2026

$153.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Drive Idler Pulley With Bolt

ES#4699360 - 06M903341D - Accessory Belt Drive Idler Pulley With Bolt - Replace your worn idler pulley - Litens - Audi

Replace your worn idler pulley

Brand:
Litens - Corporate Logo
ES#:
4699360
Mfg#:
06M903341D
Ships in 3 Business Days
$56.99

This product was last offered at the strikethrough price on
05-07-2026

$54.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit

ES#3677691 - 06m109450pKT - Timing Chain Kit - Includes new tensioners, guide rails, chains, & securing hardware to service your timing chain - Genuine Volkswagen Audi - Audi

Includes new tensioners, guide rails, chains, & securing hardware to service your timing chain for vehicles with production date up to 02/02/2023

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3677691
Mfg#:
06M109450PKT
Ships in 2 Business Days
$1579.99

This product was last offered at the strikethrough price on
04-20-2026

$1531.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Fuel Injector- Priced Each

ES#4416610 - 06M906036AP - Fuel Injector- Priced Each - Replace your old and failing injectors - Genuine Volkswagen Audi - Audi

Replace your old and failing injectors For vehicles with production date from 06/15/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4416610
Mfg#:
06M906036AP
In Stock
Limited Qty Sale
$213.00

This product was last offered at the strikethrough price on
06-15-2026

$190.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Fuel Filler Cap - Screw-In Type

ES#4447602 - VWR190000 - VWR Billet Fuel Filler Cap - Screw-In Type - Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! - Racingline - Audi Volkswagen

Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! For vehicles with threaded screw-in style gas caps only. Please confirm prior to ordering.

Brand:
Racingline - Corporate Logo
ES#:
4447602
Mfg#:
VWR190000
In Stock
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each

ES#5397015 - 06m906036aq - OEM Audi 2.9TT/4.0TT Direct Fuel Injector - Priced Each - Maximum Power on Accompanying Stage 3 Tuning - Genuine Volkswagen Audi - Audi

Maximum Power on Accompanying Stage 3 Tuning

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5397015
Mfg#:
06M906036AQ
In Stock
$277.99

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

$249.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi EA839 3.0T W.1 ECU Tune

ES#4715344 - 05-839-00131-0KT - Audi EA839 3.0T W.1 ECU Tune - Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - Audi

Increase of +66 Horsepower, and +111 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!

Brand:
Weistec - Corporate Logo
ES#:
4715344
Mfg#:
05-839-00131-0KT
Ships in 1 Business Day
$1499.00 USD
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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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