Mods per signature line. I've started to get a "noise" under load. It starts at 3 psi boost and gets pretty loud at 8 psi. That's as much as I can wring out of it, so I do have a boost leak. I was hauling cattle so didn't have time to dig deep but did notice with a light that I have a hint of smoke at idle from the bottom of EBPV shaft fitment. I did unhook the EBPV wiring just in case, but it's NOT the noise you'll get from the valve shutting. If I'm remembering correctly I did have the turbo pedestal changed 2-3 years back (not many miles though); the repair guys suggested that I do the "gutted" deal but I like using the EBPV as an engine brake. Any ideas? Going to run it in my shop tonight and check all air connections beyond the turbo.