Got this from a friend who makes them. Nice clean CNC milled piece, came with 2 gaskets and with a little extra thought, some longer bolts in stainless.
Gonna install it next week and give it a little test. Yes, its an EGR limiter for a 4.3 CPI, limits about 80% of EGR gases from getting back into the intake. Without throwing a code. He also makes them for TBI and TPI. Well see if I gain anything except maybe less carbon, some s-10 guys swear by them.
