I have a 1996 Prelude S (auto) with a F22 engine. what are some suggestions for upgrading it to get some more performance out of it?

Have a perfomance muffler on the way and have been looking for an AEM CAI or similar (AEM's $150+ is too much)

H22 swap and turbo are too much cash. What other suggestions are there? Unless there's somewhere in Pennsylvania/New York where I can get an H22 swap done for $1,000! hah