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Don't get the valve confused with the sensor. The EBPS is not affiliated with the turbo pedestal or valve. What you are looking at removing is the Exhaust backpressure VALVE.
I'll dip my toe in this one... My answer to the OP would be why would *NOT* get the high-flow outlet after doing all that work of pulling the turbo and replacing the pedestal? The benefit of the EBPV delete pedestal is removing a source of oil leaks. The benefit of the opened up outlet is better flow which should mean lower EGTs.
I'd even add that since you're yanking the turbo to do all that, invest in a set of bellowed up-pipes so you don't have to worry about them leaking in the not-so-distant future.