APR K04-15 Turbocharger System for Audi A4 Quattro 1.8T (2002–2005, Longitudinal). A direct-fit OEM K04 upgrade for B6 models.

A straightforward swap for the 1.8T, the kit includes the K04 turbo, compressor inlet O-ring, three turbo outlet studs, a manifold-to-turbo gasket, and a turbo-to-cat gasket. ECU software is included and flashes to the factory ECU; installation must be performed by an Authorized APR dealer and compatibility verified before purchase. Larger injectors are required and sold separately (factory PN 06A906031J; Bosch PN 02801558921). Designed to deliver solid gains in horsepower and torque without requiring an exhaust system.

Features

• OEM K04 drop-in for B6 A4 1.8T
• Key gaskets, O-ring, and hardware included
• ECU software included; APR dealer install required
• Fitment: A4 Quattro 2002–2005; injectors required

Have questions or need fitment/software guidance? Call us. We offer installation and customization at our Austin, TX and Los Angeles, CA area shops: 512-982-9393 (TX) or 562-981-6800 (CA).

Buying multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

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