cheap = exactly that
The only thing that I can tell you is that if you are on a tight budget, stay N/A. You could start with an Intake, header, exhaust, and suspension. Any other sort of forced induction will cost quite a bit more obviously. I say build a nice n/a and concentrate on the suspension side of the car. You'll probably enjoy the ride a LOT better with a great suspension then a loud fart mobile
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09 Civic Si