When Ilsa's engine was rebuilt following her blown piston (while participating in SCCA's Track Night In America at Blackhawk Farms Raceway), we also added a pillar gauge pod so I could have a transmission temp gauge, vacuum/boost gauge, and (most importantly) a wide band air/fuel mixture gauge. Most likely, Ilsa's mixture went too lean when the piston blew.
I like the gauge pod and I check it a lot. It does cut down on the view significantly, though. We removed the A-pillar trim and sent it in. In a few weeks, they sent it back modified to accept three gauges. Sorry, I don't recall the price, though.
The pic is not very good because I just snapped it in the garage.
Ortiz Custom Pods 3-gauge A-pillar pod
Ortiz Customs Home