You folks should definitely do a little research because you don't seem to know even the basics of operation.
With that said if you DO NOT have an IMRC to begin and ARE NOT working on a CDW-27 platform to begin with then why even ask about it?
Much less post about it on a Contour site???
Just to "hypothetically" use a maximum Extrude Honed split port UIM and RLIM.
Why go to all the time, effort, and money. Just build yourself a custom intake manifold for your application.
I am sure it would be easier in the long run and should definitely give better results if designed properly.
Either way you COULD NOT run the IMRC because there are no provisions for it in the engine harness or PCM code of said non CDW-27 car.
Now you are confusing...
