my car does the same thing i only have a cone filter and hks bov on mine and it stutters hard. turns out the boost sensor ontop of the cold pipe came off entirely and had a huge hole in my cold pipe, they dont make plastic like they used to
so incase u didnt know this the stock intercooler pipes suck, on my cold pipe right next to throttle body the boost sensor is glued onto the pipe ya well it came off. massive boost leak.
im lookin for hard pipes and a BOV. i have stock piping so if u want to trade or whatever let me know. or just let me know where i can get a cheap kit.
stock
can i make my stock bov so that it doesnt recirculate and not hurt anything in the process. tis is only temp till i get hard pipes and a real bov