Basicaly i bought a subaru forester s/tb 1998 jap import about amonth ago. when i picked it up it hadnt been used for a while so being totaly standard the exhaust system had totaly had it blowing from CAT but had no other issues. So i decided to up grade system to 3inch system full decat will 4 inch back box also took resirculating valve off and fitted a turbo smart bov. about 5 to 6 days after this now car is wat i belive to be over boosting causing fuel cut and making car jolt . THIS only happens when u go to put your foot down gets to 4000rpm and then does this.turbo also know sound funny.?? IF ANY 1 KNOWS THE PROBLEM WAT IM HAVING PLEASE MESSAGE ME AS I JUST RELY WANT TO GET THIS BK ON ROAD RUNNING NICE cheerz

 

You didn't mention that you had it remapped? If you haven't... That's your problem!