CTS Turbo K04 Turbocharger Upgrade for FSI and TSI Gen1 Engines (EA113 and EA888.1)

The CTS Turbo K04 turbocharger delivers a proven forced induction upgrade for early-generation EA113 FSI and EA888.1 TSI platforms. Designed as a direct replacement for factory turbo units, this K04 upgrade offers enhanced airflow capacity while maintaining factory mounting points and feed configurations. Engineered specifically for 2008-2013 Audi A3, 2009-2011 TT, select Q3 variants, and 2008-2010 VW Passat B6 and EOS models. Built to CTS Turbo's exacting standards, this turbocharger supports modified engine builds requiring increased boost potential without extensive fabrication or custom pipework.