I am so pleased to see that ICS are the ones in the US to take the BMW to the T6 level. Thank you for having the vision and the courage to move the progression forward into the next dimension George!
I wouldn't think that currently there is any worry about an air cleaner since this is an R&D car. I suppose fit and fitment is important in case a regular street car customer wanted his setup and needed a filter. However I believe the number of drives would be so few that a mesh screen would be enough. Has anyone come out with a mesh screen/spongy filter combination yet? I would think someone should with the tight space constraints and demand with these larger turbos. I know I would have come out with them myself if I were part of the Garrett R&D team.
Will you be trying a 5" downpipe George?

That would be nuts.
Are there any plans for some major R&D for the entire drivveline? You can now make the power...the question is, putting it to the ground and keeping parts of the car from exploding. That is the next step right there. Not as easy as turning up the boost unfortunately. Maybe there are different complete rear suspension setups from say the e34 m5 or e39 m5 that can be modified to work with the e36. Strengthening what is curretnly there has been a challenge. Replacing it with something better but keeping it IRS, that is the way to go.