On my E, I teed off the bleed. Went thru one intercooler to one side of the mix valve. Ran the other side of the tee to a second intercooler to the other side of the mix valve. We got way too cold at altitude with the mix at full hot. So we now tee off the bleed directly to the hot side of the mix valve. We run the other side of the tee thru both intercoolers then to the cold side of the mix valve. Works great lasts a long time!

 

Regards. Dave.