The APR Intake System includes a full back tube and turbo inlet adapter. However, this allows you to convert the GTI/A3 style system (CI100052) to the Golf R/S3/Arteon style system (CI100053) which features a larger turbo inlet pipe at the turbo end, and a DV recirculation port for the throttle mounted Diverter valve. This pipe can be used when upgrading to the continental turbo or other hybrid or direct replacement turbocharger systems that require a larger turbo inlet, and require DV recirculation on the hose.

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