Just installed air intake on 1.5L!

[cali yaris]

It's a good discussion guys, and worthy of hashing out (even multiple times, lol).

Factory cars like the Yaris are tuned for mileage first, and performance second. I could put a management unit on a 100% stock Yaris and pull 10-15 whp out of it.

@ matthewai: yes, more airflow is always helpful in general. I have a K&N on my wife's Prius and, while I haven't dyno'd it, I swear it feels a little peppier (anything does on that car, lol)

Like RedRide stated before, its seems purely a WOW factor.I had a AEM CAI installed and did a dyno before and after. Only gained 1.5 whp.

Those two statements kind of conflict with each other. Just saying.... anyways.....That's nearly 2%, assuming identical session conditions. Not bad for a single mod.

Can you post the dyno's? I bet you picked up torque and got a more useful performance curve, too. Those are more important than the "big number", IMO.