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[Penis]

Is ViPEC's logger supported by VD?

If you plan on doing any sort of street tuning yourself, than a wideband is absolutely nessicary. The factory narow band sensors really dont tell you shit. If you arent doing your own tuning on the street though, you can get away with not having one installed. Pretty much every dyno I know of has it's own logging capabilities for AFR/lambada/boost/vac through probes and tailpipe sniffers.
The way I see it though, the gauges are affordable and cheap to install, plus you can never have too much info about what your engine is doing on the fly.