Well, Drive fron San Jose, here are my conservative recommendations.
Intake - drop in a K&N free-er flowing filter and call the intake good. Ain't nutten wrong with the stock box and the drop in filter is easy to install and it allows the engine to breath a bit easier.
http://www.knfilters.com/filtercharger.htm
As far as exhaust, if you are looking for a good sound to listen to while going over the hills to Santa Cruz or up to Mt Hamilton, I would recommend a simple axle back system like the Nameless with 2.5" piping and 5" mufflers.
http://shop.namelessperformance.com/...eback-exhaust/
It's relatively inexpensive, well made, easy to install and sounds good as in "I'm here" but NOT "Look at ME".
The two together gives my car a bit of "ump" ..... according to my ear dyno, at least.......