I have a stock 2007 Civic si 2.0 how can i cheaply increase horsepower
It is a daily driver but I want more power. Reliability is critical so I need sensible info. No turbo, supercharger, No2 info. Cheap sensible power gains please.
Intake and exhaust upgrades will gain you few HP and will not affect reliability. After that you get into internal engine mods which are not cheap.
HP is not cheap.
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