Boost pressure

[Blueovalnut]

The EGR cooler and valve are still on the engine. The crossover pipe has been removed and blocker plates have been installed in its place. Only problem I see there is the exhaust gas is still going through the cooler due to where the blocker plate was installed. Also it came with a DPF, but it’s be de-mandated. The coach is a 2008, but the engine is a 2007... at least that is what I was told. “ISL EPA 07” Thanks again for everyone’s replies and help.