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CTS Turbo 2.0 Borg Warner K04 Turbo Upgrade Kit (05-09 A4 FWD)

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SKU: 103987

Product Details


The heart of the CTS Turbo B7 A4 2.0T turbo upgrade kit is the Borg Warner K04-0064 turbocharger.

This turbocharger is commonly used in OEM applications such as the Audi S3 available in Europe.

The highlight of this Borg Warner turbocharger in our kit is the 'forged mill' compressor wheel, which brings numerous benefits to the enthusiast.

FWD Only!


The technology used in the production of these turbos provides us with a variety of benefits:

  • Reduced compressor wheel weight (faster spool)
  • Increased strength,
  • Greater surface area of the compressor wheel. Because of the Forged mill' technology Borg Warner can increase the effective surface area of the compressor wheel, which results in greater air flow than conventional cast compressor wheels.

Power with Unitronic Stage 2+ tune: 335hp/335lb-ft tq

Additional parts required:

Included In The Kit:

  • Borg Warner K04-0064
  • Custom silicon hoses to relocate the factory diverter valve. Our diverter valve relocation uses the same principles as the OEM Audi S3, Audi TTS and Golf R.
  • New diverter valve housing to relocate the diverter valve,
  • OEM gaskets, nuts, studs and hardware and
  • test pipe to connect to your factory downpipe.

Power with Unitronic Stage 2+ tune: 335hp/335lb-ft tq

Kit must be used with test-pipe that is included.
Product Features

  • Best 'bang for the buck' modification available for B7 enthustiasts with the 2.0T engine.
  • Comes with Hardware
  • Power with Unitronic Stage 2+ tune: 335hp/335lb-ft tq



1 year limited warranty

Merchandise is warranted by the manufacturer against defects of material or workmanship when properly installed. Any claims for damage or defects to products must be reported prior to installation. All merchandise warranties are limited to replacing or repairing any part returned to us which upon inspection, is found to be defective. Claims for labor charges, down time or any other fees incurred will not be allowed.  All CTS Turbo products are covered under a 1 year warranty against manufacturing defects.  Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing.  Warranties only apply to the original owner.  If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement.

Fitment Guide

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Fitment Guide

Fitment Guide

Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2005 2008 AUDI A4 BASE L4 2.0 GAS FI T BPG

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