3" downpipe to 2.5" e-cutout exhaust?
 

Setup:
stock b18c1
t3t4 .57trim turbo
ramhorn manifold
3" downpipe
to concentric 3" to 2.5" reducer welded to y-pipe with 65mm e-cutout
no cat
60mm full exhaust
300whp @ 10psi
400whp @ 17psi


problem:
I can't sell my exhaust for close to what I paid for it. So I rather keep it and just go with e-cutout

Possible Solution:
3" downpipe to 2.5" y-pipe with e-cutout.


Question:
At higher boost I'll OPEN the e-cutout.
BUT you guys for see any issues with using a reducer at CLOSED e-cutout at 10psi (daily driving)
Motor will be tune with e-cutout OPEN @ all psi.