Originally posted by oliveskate
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Save money on the CAI by drilling about two dozen holes in the bottom airbox piece. This will give you better breathing at higher RPMs, which is all a CAI will do. I do this simple mod on all my cars, and they do respond well to it. I suspect that the stock air filter will flow all the air the motor can handle; the real restriction is the tiny hole letting air into the airbox.
Heater:
First make sure you have a 195 degree thermostat, not a 180. Might as well put a new one in anyway since you've got the housing off. Also flush the radiator and heater core a lot. Use cardboard or something to block off the rad on really cold days, if needed. And on the coldest days, warm up the car before you drive it. But I suspect you know most or all of this stuff anyway if you live in Canada.
Those little electric car heaters draw a lot of amps, and Festy alternators are marginal. And I don't think they do much for heating anyway.
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