Question about Hh0
Question about Hh0
Has anyone got any experience with fitting/running a Hh0 kit on there impreza?
seems that the only real problem is that the exhaust o2 is higher and the ecu thinks
that the engine is running lean so adds more fuel and defeats the objective..
seems that the only real problem is that the exhaust o2 is higher and the ecu thinks
that the engine is running lean so adds more fuel and defeats the objective..
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