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  1. Since8095

    Air induction and dump valve?!

    Hi to anyone that can help.. I have a 2010 TT TFSI VVL engine. I recently had Revo stage 2 tuning done (high flow air induction, downpipe, remap and dsg remap.) Which I am over the moon with! Recently I have read that adding a GFB VTA, can help with throttle response and can somewhat help a...