hi need some help please,had a different center section and back box put on my sti3 today eveything was fine on way home,fitted a turbo timer to the car when i got back from exhast fitting went for a drive and only getting 0.5 bar instead of the normal 1.0 bar,just to let you know had a bliz nur spec r on befor now changed for kakaimoto 92db center section and back box.