Hi, I am looking for some advice about my problem. My Impreza 2.5 WRX 06 is jerking, stuttering when accelerating has low power. Last time i saw that boos gauge shows only 0.5 bar of boost. Looks like ecu reset helped for some time but thats not a solution. I made some logs before ecu reset. I checked for leaks, changed spark plugs, fuel filter and fuel pump, o2 sensor, timing belt, cleaned throttle. Car has a few modifications done by previous owner: COOB 3' exhaust and downpipe and remap for that. I can do more logs if needed. Next step is new coil pack and maf sensor but i'd like to ask about your opinion before changing every single part in my car Thank you for any help.

 

So i decided to change coil packs. My question is about part number. In car i got installed FK0186. Does FK0334 will fit or is it only for GH generation?