Tune Stage
The modification level of the ECU tune: Stock, Stage 1, Stage 2, Stage 2+, or Custom. Higher stages run more boost and timing.
Why it matters
Stage affects what's "normal." A stock B58 at 17 PSI is healthy; a Stage 2 B58 at 17 PSI means something is wrong. Set your tune stage in the vehicle profile so the scoring engine uses stage-appropriate thresholds.
What to look for
The scoring engine adjusts boost target, knock, and fueling thresholds based on tune stage. Wrong stage = wrong thresholds = misleading findings.
Related terms
The overall engine health rating (0-100) computed from 5 weighted categories: boost, fueling, ignition, drivetrain, and temperatures.
Hardware upgrade recommendations generated from your analysis findings, prioritized by impact, with cost ranges, expected score improvements, and prerequisite dependencies.
Want to learn more about Tune Stage?
Get our free logging setup guide -- covers the channels you need, what to look for, and how to interpret your data like a pro.
See Tune Stage in action
Upload your datalog and every finding, including Tune Stage, will be explained in plain English with actionable next steps.
Analyze your own log