Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi S4 Engine Emission Parts

Sort By
Filter By
Return to Top

Ultimate Pressure Control Valve (PCV) Kit

ES#4487413 - 06E103547AC1KT - Ultimate Pressure Control Valve (PCV) Kit - Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4487413
Mfg#:
06E103547AC1KT
In Stock
ON SALE! SAVE 15%
$332.99

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

$284.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Basic Oil Separator/Pressure Control Valve (PCV) Kit

ES#4698595 - 06m103515fKT - Basic Oil Separator/Pressure Control Valve (PCV) Kit - Replace your leaking PCV - Genuine Volkswagen Audi - Audi

Replace your leaking PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4698595
Mfg#:
06M103515FKT
In Stock
$167.99

This product was last offered at the strikethrough price on
02-24-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Pressure Control Valve (PCV) Service Kit

ES#4487400 - 06E103547AHKT - Ultimate Pressure Control Valve (PCV) Service Kit - Comprehensive kit includes new oil separator, supercharger gaskets, vent tube o-rings, and ECS coolant bleeder screw kit. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Comprehensive kit includes new oil separator, supercharger gaskets, vent tube o-rings, and ECS coolant bleeder screw kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits from the 2013 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4487400
Mfg#:
06E103547AHKT
In Stock
ON SALE! SAVE 14%
$346.99

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

$297.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

RacingLine Oil Catch Can System - B9 S4/S5/SQ5

ES#4620271 - VWR131000 - RacingLine Oil Catch Can System - B9 S4/S5/SQ5 - Features a complete PCV replacement block feeding to an internally-baffled can to eliminate oil-build-up in the intercooler and inlet tract - Racingline - Audi

Features a complete PCV replacement block feeding to an internally-baffled can to eliminate oil-build-up in the intercooler and inlet tract affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4620271
Mfg#:
VWR131000
In Stock
$1117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit

ES#4782919 - 06M129041KT2 - Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit - Comprehensive kit includes the PCV, Breather lines, and all required hardware - Assembled By ECS - Audi

Comprehensive kit includes the PCV, Breather lines, and all required hardware 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#:
4782919
Mfg#:
06M129041KT2
In Stock
ON SALE!
$303.99

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

$291.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

034Motorsport PCV Breather Hose - EA839 3.0T

ES#4849697 - 034-101-3108 - 034Motorsport PCV Breather Hose - EA839 3.0T - Upgrade your failure-prone PCV breather hose with the high-performance, reliable 034Motorsport PCV Breather Hose - 034Motorsport - Audi

Upgrade your failure-prone PCV breather hose with the high-performance, reliable 034Motorsport PCV Breather Hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4849697
Mfg#:
034-101-3108
Ships on Jun 25, 2026
Auto Notify
$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit

ES#4782917 - 06M129041KT - Ultimate Oil Separator/Pressure Control Valve (PCV) Service Kit - Comprehensive kit includes the PCV, Breather lines, and all required hardware - Genuine Volkswagen Audi - Audi

Comprehensive kit includes the PCV, Breather lines, and all required hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4782917
Mfg#:
06M129041KT
In Stock
$325.99 USD
Free Shipping
on orders $49 and up
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
06-05-2026

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

Oil Separator/Pressure Control Valve (PCV)

ES#4620647 - 06E103547AC - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Hengst - Audi Porsche
ECS Tuning recommends this product.

Located beneath the supercharger compressor 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!
Up to the 2012 model year

Brand:
Hengst - Corporate Logo
ES#:
4620647
Mfg#:
06E103547AC
In Stock
$130.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#4620653 - 06E103547AH - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Hengst - Audi
ECS Tuning recommends this product.

Located beneath the supercharger compressor 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!
Fits from the 2013 model year

Brand:
Hengst - Corporate Logo
ES#:
4620653
Mfg#:
06E103547AH
Ships in 8 Business Days
$165.99 USD
Free Shipping
on orders $49 and up
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

Oil Separator/Pressure Control Valve (PCV)

ES#3150000 - 06E103547AC - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Genuine Volkswagen Audi - Audi

Located beneath the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3150000
Mfg#:
06E103547AC
In Stock
$297.26

This product was last offered at the strikethrough price on
04-09-2026

$296.62 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal ECS Tuning Baffled Oil Catch Can Kit (8oz)

ES#4040043 - 003779ecs05-01KT - Universal ECS Tuning Baffled Oil Catch Can Kit (8oz) - Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. - ECS - Audi Volkswagen

Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4040043
Mfg#:
003779ECS05-01KT
In Stock
ON SALE! SAVE 10%
$408.90

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

$368.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Catch Can Kit - EA839 S4/S5

ES#4849699 - 034-101-1016 - 034Motorsport Catch Can Kit - EA839 S4/S5 - Engineered for enhanced durability to capture crankcase oil deposits before entering your intake tract - 034Motorsport - Audi

Engineered for enhanced durability to capture crankcase oil deposits before entering your intake tract affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4849699
Mfg#:
034-101-1016
Ships on Jun 29, 2026
Auto Notify
$729.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Basic Pressure Control Valve (PCV) Kit

ES#3698386 - 06e103547acKT1 - Basic Pressure Control Valve (PCV) Kit - This kit includes new oil separator, supercharger gaskets (qty 6), and vent tube o-rings (qty 2). - Assembled By ECS - Audi

This kit includes new oil separator, supercharger gaskets (qty 6), and vent tube o-rings (qty 2). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
3698386
Mfg#:
06E103547ACKT1
In Stock
ON SALE! SAVE 14%
$189.99

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

$163.57 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#4772517 - 06M103515H - Oil Separator/Pressure Control Valve (PCV) - Also known as the "PCV". Located on the valve cover - Bremmen Parts - Audi Porsche

Also known as the "PCV". Located on the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4772517
Mfg#:
06M103515H
Ships on Aug 4, 2026
Auto Notify
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

Let us help you find the parts that fit your Audi

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

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings