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 Clear

Audi B6 A4 Quattro 1.8T

    • 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 Audi B6 A4 Quattro 1.8T
Your Vehicle Audi B6 A4 Quattro 1.8T
Change Clear

Audi B6 A4 Quattro 1.8T APR Software

Sort By
Filter By
Return to Top

APR K04 Software Upgrade Service

ES#2063664 - APRLNGK04-SWUSRV - APR K04 Software Upgrade Service - Software upgrade for existing APR Chip customers with a K04 already installed - Minimum requirements of K04-0015 turbocharger, Injectors, and high flow cat - APR - Audi

Software upgrade for existing APR Chip customers with a K04 already installed - Minimum requirements of K04-0015 turbocharger, Injectors, and high flow cat Call In Or Chat For Best Price!
For customers with existing APR software - This upgrade must be performed via our Chip & Ship method.

Brand:
APR - Corporate Logo
ES#:
2063664
Mfg#:
APRLNGK04-SWUSRV
In Stock
ON SALE! SAVE 20%
$369.99

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

$295.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Anti-Theft Service

ES#2063652 - APRTHEFT-SRV - Anti-Theft Service - *Sale applies only to ECU with 3 or 4 program purchase. - APR - Audi Volkswagen

*Sale applies only to ECU with 3 or 4 program purchase. Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063652
Mfg#:
APRTHEFT-SRV
In Stock
ON SALE! SAVE 10%
$199.00

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

$179.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Additional Programs And Options Software (Fully Loaded)

ES#3098218 - DPPFLUPG - Additional Programs And Options Software (Fully Loaded) - Includes valet, sport, performance, and anti-theft modes - APR - Audi Volkswagen

Includes valet, sport, performance, and anti-theft modes Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
3098218
Mfg#:
DPPFLUPG
In Stock
ON SALE! SAVE 20%
$129.99

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

$103.96 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Security Lockout Service

ES#2063654 - APRSECPRG-SRV - Security Lockout Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

*Sale only applies to purchases to ECU with 3 or 4 program options Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063654
Mfg#:
APRSECPRG-SRV
In Stock
ON SALE! SAVE 10%
$59.00

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

$53.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Fault Code Erase And Throttle Body Alignment Service

ES#2063651 - APRFCTB-SRV - Fault Code Erase And Throttle Body Alignment Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

*Sale only applies to purchases to ECU with 3 or 4 program options Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063651
Mfg#:
APRFCTB-SRV
In Stock
ON SALE! SAVE 10%
$59.00

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

$53.10 USD
This product is lifetime replacement eligible Lifetime Replacement

Stage 1+ Performance Upgrade - Direct Port

ES#2918519 - b6a4stg1upgrdKT - Stage 1+ Performance Upgrade - Direct Port - Does not include injectors - Gains of up to 55 HP & 100 LB-FT torque on 93 octane! - APR - Audi

Does not include injectors - Gains of up to 55 HP & 100 LB-FT torque on 93 octane! Call In Or Chat For Best Price!
This upgrade must be performed at ECS Tuning's facility in Ohio.
For existing Stage 1 customers upgrading to Stage 1+. Drive your vehicle to our location

Brand:
APR - Corporate Logo
ES#:
2918519
Mfg#:
B6A4STG1UPGRDKT
In Stock
ON SALE! SAVE 10%
$150.00

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

$135.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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 Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings