Originally Posted by MidWest281
I find it hard to believe that you get 35hp from a Cold Air Intake. I don't think it's the fresh air inlet that makes a difference, it's most likely just the air filter that makes the difference. The aftermarket air filter just restricts airflow less than a stock air filter.
Changing your exhaust system has the same effect, typically reducing back pressure.
You don't need to buy a CAI "system" to see horsepower gains...just allow air to more freely flow into (or out of) your engine and you'll see horsepower gains.
my .02
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You don't get 35hp just from the intake. That hp number includes a tune and that's where most of the power comes from.