Well, it entirely depends on the engine, as to the gains you will see. On my 2000 GT I put a 9" cone filter on, and it sounded like a vacuum cleaner, but I did have a little more oomff, and slightly better gas mileage. Now on my GTP, going with the same cone filter, upped my gas mileage quite a bit.
Isn't the throttlebody on a 3100 smaller than a 3800? So he would need a smaller filter unless by SE he meant Special Edition.
I wouldnt buy just the filter..i also have a 02' Gp se with the 3.1L and i couldn't find a cold air intake for it and i also just bought the cone filter and it didnt do anything but make a little noise..and because it's a flex intake and you cant take the air box all the way (just the front half) because they put the PCM in the box right in front of the filter in the same box..everyone i talked to said i would have to build my own....as for other mods i cant find anything other bolt on's.. so good luck with what-ever you deside to do..and let me know if you find anything
youre supposed to take the air box, corrugated tubing and all out then leave the PCM sit where the air box was. then you put the cone right on your throttle body. however, youre right about it not doing much but make a little noise.
Wtf is that black thing next to your pcm?
And sorry by smaller filter I meant one with a smaller end to fit on the throttle body.
You should just put a 3.8 in it lol.