Originally Posted by ozinaldo
+1. What could be the function of this? Kind of lame protection for the intercooler, guess and hope not! Or was it intentionally put there to limit (or maybe direct) the air flow for some reason? Why would BMW bother to produce and install this piece?
It's probably there for the same reason those silly brake duct blockers are there on the E46 M3; who knows!
If it were my own 1M, I would absolutely remove this piece before the Forge intercooler goes in. It's easy and makes it a breeze to install the new intercooler and is 100% reversible. . .not to mention I'm sure it will allow for better flow.