2025 Toyota 4Runner Tuning Guide
Tunability Score
Max HP Gain
+0-5 HP
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- Tuning Score
- 2/10
1 published stage path
Tuning score is 2 out of 10.
- ECU Access
- Impossible
Access limits faster builds
ECU access is Impossible with a score of 4 out of 10.
- Aftermarket Support
- Minimal
Support varies by build target
Aftermarket support is Minimal with a score of 5 out of 10.
- Estimated HP Gain
- +0-5 HP
Highest published stage gain
Estimated HP Gain value is +0-5 HP.
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Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.
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