MK7.5 Golf r - CTS cat less down pipe - Upgraded HPFP internals - Grounding kit for coils - ARM FMIC - IE intake - EQT stage 2 e85 tune no burbles - EQT DSG tune During WOT car seems to bog on shifts Happens irregularly feels like boost pipes or intake pipes burst off during bog, but car keeps pulling like nothing happened when problem does not occur car runs fine hits peak boost during pulls just replaced DV valve, whine seems to occur also during WOT