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APR B6 A4 1.8T K04 Turbo Upgrade

K04

APR is now proud to release our K04 upgrade kit for the B6 Audi A4 1.8T. Our kit includes the K04 turbo, the compressor inlet O-ring, three turbo to downpipe studs, one manifold to turbo gasket, four Bosch fuel injectors, and one turbo to cat gasket. This kit is a straightfoward turbo swap that makes a big difference in the power output of the car.

This kit makes solid gains in both horsepower and torque. With no other mods than an APR Exhaust, the kit made 247hp/286lb-ft on 93 octane gas. Although the exhaust is not required, it is highly recommended.

The software for this kit is also available separately.

Dyno Performance

dyno

Please Note: An APR Dealer MUST check software availability and compatibility before purchase.

APR K04 Turbo Upgrade Including Software
Year Engine Option Part Number Price  
2002 - 2005 1.8T With Injectors T2100003$2,299.99Locate an APR Dealer
2002 - 2005 1.8T Without Injectors T2100004$1,799.99Locate an APR Dealer
Pricing - Software Only
Stage Minimum Requirements Price
IMPORTANT PRICING AND AVAILABILITY DETAILS:
- Pricing: Please contact an APR Importer for pricing outside the USA.
- Program Switching: A fully loaded ECU includes up to 4 program modes (stock mode, performance modes, valet, etc), as well as fault code erase, security lockout and anti-theft depending on availability and ECU compatibility.
- Availability and ECU Compatibility: Stages, programs, and features may not be available for all ECUs.
- ECU Revision Notice: Multiple ECU revisions exist for each platform. APR software may be temporarily unavailable when factory updates are applied. An APR dealer can check availability in person, or over the phone if the ECU boxcode/revision is known.
APR Stage I ECU Upgrade (Existing APR ECU Upgrade Customer) OEM K04-0015 Turbocharger, APR Injectors, and High Flow Cat $199.99
APR Stage I ECU Upgrade (New APR ECU Upgrade Customer) OEM K04-0015 Turbocharger, APR Injectors, and High Flow Cat $699.99
- Add APR EMCS Program Switching (Fully Loaded) None No Additional Charge

How to purchase

APR DealerPlease use the APR Dealer Locater Tool to locate an APR Dealer, confirm availability and schedule an appointment.

Please note vehicle manufacturers issue many ECU part numbers and revisions throughout their vehicle lineup. As such, some ECUs may be temporarily unavailable as new parts and/or revisions are released. If the vehicle’s ECU part number and revision is known, availability can be checked at any APR Dealer.

APR Tuned

Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: (334) 502-5180 Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

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Notice: Products that affect emissions and do not carry a California Air Resources Board Executive Order are not for sale in California, USA. While we try to keep everything current, APR LLC is not responsible for errors in pricing on this web site. All prices are in USD and are applicable to the United States of America only.