ok, well i have hydrolocked my engine before blah blah blah dont like cais yadda yadda...wanted a steeda SRI. heard it wont fit an 04 b/c of the headlights. i have small aftermarket lights so i might fit , but i dont want to try wasting 200 dollars. sooooooo i was a little upset and i took a saw to my maf tube. i created my own SRI. bought a new cone filter(the old one was so old and used it was like black compared to the new one). cut right above the maf(a few inches) that part is 2.5 inches...bought some intake couplers...put a coupler directly on the throttle body , and the other on the cut maf tube, new intake on the end. viola. i unplugged battery, i have driven about 2 miles in it, so far nothing wrong, no knocking, explosions, bogging or anything. can definately tell its there, feel wise and sound wise. but mostly sound wise lol its freaking loud. i can hear it over my exhaust.... can even hear it at idle. if something goes wrong...well i guess thats a reason to spend the money in my bank on a real cai. can get pictures and maybe a vid later!