APR T2100003 K04 Turbo Kit Audi B6 A4 1.8T

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The APR T2100004 K-04 kit includes a Borg-Warner K04 turbo, four OEM Audi TT 225 fuel injectors, the compressor inlet O-ring, three turbo to downpipe studs, one manifold to turbo gasket, and one turbo to cat gasket. This kit also includes the APR K-04 chip programming for the Audi B6 A4 1.8T (a $699 value!). This kit is a straight forward turbo swap that makes a big difference in the power output of the car.

The APR K-04 kit makes solid gains in both horsepower and torque. With no other mods than a full exhaust, the kit made 247hp/286lb-ft on 93 octane gas. Although an exhaust is not required, it is highly recommended.

The software for this kit is also available separately for current APR Stage I/I+ or II/II+ customers for $199 or $699 for customers that do not currently have an APR tune on their car.

APR T2100004 Vehicle Fitment:

  • 2002 Audi A4 1.8T
  • 2003 Audi A4 1.8T
  • 2004 Audi A4 1.8T
  • 2005 Audi A4 1.8T
  • 2005.5 Audi A4 1.8T

This kit requires a high flow catalytic converter.

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turbocharger upgrades
all engine

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