I installed a pair of those fancy ($450) vents that Sporty's sells.
Royson reviewed them in the newsletter last year.
As he indicated, they are awesome.
The only downside is the recommended relocation of the OAT gauge.
They want you to drill the windshield. Whoa! I don't think so.
I ordered a Davtron 303.
That'll get me digital OAT and voltage.
Ditching my "orange juice" cans will be costly, unfortunately.