2012 si coupe
Installed kraftwerks super charger full exhaust and deatschwerks fuel pump. Car was tuned 331hp.. ran great..3 weeks later it's breaking up bad. Any heavy throttle it break up bad and it feels like stock power again. No boost leak so I took it back to the tuner. He says the car is...
Question...did you buy a new fuel pump assembly? Looking at the pics the filter looks new..I let someone install one for me and I'm having issues so I pulled it out and the sock looks black. I have the separate filter kit that you can buy with the fuel pump but it's not a direct fit. What should...