Original poster, often people forget to put back the grounding strap when messing with the coil packs. when forgotten, they do exactly what you describe. if the shop got the strap back on when checking, everything would run great again.
OE CSL WHEELS - OE CSL BRAKES - OE AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AS 40% SSK
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