Originally Posted by sonoronos
The short answer is that it depends on the state of your engine.
Engines that run trumpet-style intakes and individual throttle bodies are often tuned with individual EGT and wideband AFRs on each cylinder!
ITBs (Independent Throttle Bodies) that's where the power is at!! All the cool kids are doing this with their big blocks. Any SRT guys out there planning on heavy modification for this???
As far as the dual AFR gauges, if anything, it'd be for the most precise tuning, very redundant. But would aid in diagnosis if there's a problem, can isolate one side of the block if there is an issue.