hydo lock ?!?!? ha ha ha ...anyone who hydro locks their car with a cai is a friggin moron and deserves it ! i bought the mazdaspeed cai because it was the only one available when i bought my car. knowing what i know now, i say get whatever is the cheapest $$$. all the bells and whisltes some of these places try to charge you extra for do mean s***. like a air flow straightener. you dont need it. sure it keeps keep you fuel trims close to zero, but does that matter ?? no, not one tiny bit. i have seen my car have long term fuel trims off by less than 2% or as high a 18% off and guess what, the car never missed a beat ! thats why the ecu has fuel trim correction. i say buy a real CAI not SRI reset the battery and give the car 5 driving cycle to adjust your fuel trims thenbeat the piss out of it. that is my method AFTER EVERY MOD !!
the cobb SRI being metal might not get warm like a cai will, it just sucks up the hot engine bay air ! it has been proven time and time again though on a turbo car THAT IS MOVING there is almost no difference in actual inlet air temps between a cai and SRI. but at a stop you will heat soak faster with a sri.