Im trying to decide on which intake to purchase... I live in cali and frequently drive out to the desert and mountains. What are the biggest differences between the two? And which is going to have better performance?
CAI will deliver a colder denser charge and deliver better low end torque. A SRI will deliver warmer air but will increase throttle response and top end power. It down to length of the intake and what you prefer.
Cold air is not hard but time consuming, you have to remove the front bumper. Plus I like the response of the short ram, and I don't have to worry about hydro lock. Both are good for some extra power and sound, its all in what you like more.
I took all of the stock air box components out, looks clean and I don't see how it can help unless your going really fast, as in 100 + mph. The ram intake sit where the hood closes so no air getting to it that way.
Tubtub has the Fujita CAI, and I have been for a ride in his car, sounds really good. Doesn't have the same response as the short ram, oh and as for those videos air intakes do add power you need a tune other wise the ecu will not allow the any extra power, Mart and Moog made a video proving this with a cat-back exhaust on a forester I think.