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hp gains on stock engine

Practical Reflash Tuning

Discussion and questions related to the course Reflashing

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hey there, i was wondering if i can get some reasonable hp gains if my engine is fully stock? if yes can it be more than 20 hp?

That's a very open question and the answer is going to depend entirely on what engine. In my experience yes, quite possibly you can see gains of 20 hp or more. In some engines however you'll struggle to realise any gains without hardware modifications first to the engine.