Stage 1 ECU Remapping - Subaru Trezia

Stage 1 ECU remapping is the first step in performance optimization for Subaru Trezia. Also known as chiptuning, it increases power and torque without hardware modifications while keeping factory reliability.

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What is Stage 1?

Stage 1 is an electronic remap of the ECU (engine control unit). For Subaru Trezia, it adjusts injection, turbo boost and ignition parameters to unleash the hidden potential of your engine.

After diagnostics and dyno testing, the ECU map of your Subaru Trezia is optimized and validated through road tests and power bench runs. The process is 100% reversible.

Stage 1 ECU remap for Subaru Trezia

2011 et + - 1.4 D - 90ch

90 ch ch

Benefits of Stage 1 remapping Subaru Trezia

Up to +30% more power and +25% more torque

Reduced fuel consumption with smooth driving

Full respect of manufacturer tolerances

Smoother and more enjoyable driving experience

FAQ about Stage 1 Subaru Trezia

Is Stage 1 safe for my Subaru Trezia?

Yes, Stage 1 remains within the margins set by the manufacturer. It does not compromise the engine’s reliability.

Does Stage 1 increase fuel consumption?

No, under normal driving conditions fuel consumption may even decrease. It only rises under sporty driving.

Do I need to change parts for a Stage 1 Subaru Trezia?

No mechanical modifications are needed. Everything is done via electronic ECU remapping.

Stage 1 Subaru Trezia: all you need to know

Stage 1 ECU remapping for Subaru Trezia combines performance, safety and simplicity. Also called chiptuning, it boosts power and torque without hardware changes. Perfect to enjoy a more responsive engine while staying within OEM tolerances.

✅ Advantages of Stage 1 Subaru Trezia

Up to +30% more power and +25% more torque
Lower fuel consumption in normal driving
Reversible ECU remapping at any time
No mechanical modifications required
Improved flexibility and driving comfort

❌ Drawbacks of Stage 1 Subaru Trezia

Higher fuel consumption under sporty driving
Not recommended on very high-mileage vehicles without prior maintenance
Performance gains vary depending on engine and manufacturer
May void manufacturer warranty if detected

Ready for Stage 1 on your Subaru Trezia?

Join our platform and get a professional, safe and customized Stage 1 ECU remap for your Subaru Trezia.