Quick and easy installation
Simple four-wire connection. Every Yellow Box includes a splice wiring harness.
A custom made YB plug-n-play wiring harness is an optional extra.
Simple, intuitive speedometer recalibration
1. Determine your vehicle's total speedometer error.
2. Set the Yellow Box switches to correct your total speedo error.
3. Fine tune or adjust your speedo correction at anytime with ease.
It's that simple!
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