Stage 1 remap estimates for 38 engine variants across 11 models
Browse All Models ↓Subaru offers a diverse engine lineup — approximately 21% diesel and 79% petrol across 38 variants in our database. Both fuel types respond well to Stage 1 remapping, with turbocharged diesel engines typically delivering the largest gains in both power and torque.
Around 53% of Subaru engines in our database feature forced induction, making them excellent candidates for remapping. Across the range, Stage 1 gains typically fall between 10 and 55 BHP (averaging 26 BHP) and 9 to 60 Nm of additional torque (averaging 46 Nm). These gains come from optimising boost pressure, fuelling, and ignition timing — all within the engine's mechanical tolerances.
Subaru engines have an average suitability score of 5.6/10, indicating good potential for Stage 1 remapping. As always, results vary by engine — check individual suitability scores to find the best candidates in the range.
A Stage 1 ECU remap optimises your Subaru's factory software to unlock its full potential — no hardware changes required. Here are the typical gains across the range.
+10–55 BHP across the range
+9–60 Nm across the range
53% of variants are turbocharged
Software-only — no hardware modifications needed
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