I have an 2002 S with a bored out 3.2 to about 3.35, 95mm JE pistons. I put in an air box from a 987 Cayman, using the much larger MAF housing with it. The car did not like it at anything other than WOT. Which is fine for a few runs down the front stretch. Anyway, I cut off my stock MAF housing from original air box and mated it to the 987 box. Then added this TBI setup to it also. There is a really long 987 v 986 air box thread on here that I started 2 years ago.
http://986forum.com/forums/performance-technical-chat/32074-987-v-986-air-box.html