The LD9 only had EGR through 1998. In '99 there were a number of changes to the engine, one of which the EGR system was removed. The casting of the head was not changed, however. The hole that extended from the exhaust side to the intake side remained through the end of production. There was no EGR valve on the front, and the exhaust manifold and gasket completely covered up the hole. There really was no reason to change the casing of the head.
Because of all this you have to be very careful when you install a header or just plain change the exhaust gasket. Any manifold, header and gasket MUST be correct for your model year. You do not want to be sending exhaust gasses through that hole if you don't have an EGR valve on the other end (99-02). And likewise, you don't want to be blocking off that hole if you have an EGR valve (96-99).
"Only two things are infinite, the universe and human stupidity, and I'm not sure about
the former." - Albert Einstein
ok thanks guys for your input . yes guess what im trying to say is i dont remember if anything covered that hole or not..
