hi all ,
have a 2002 patrol with 2006 motor , 2006 has done around 90,000 ks ,
have fitted 3 inch exhaust and blocked the emission .
trouble is now my turbo is all over the place , boost is around 4 lb more , running at around 14 to 16 psi

also when I accelerate at low revs the boost drops untill motor gets to required revs and then comes up again.
help.