well...if you get a kit, the parts are basically bolt-on. If you piece it together, you will find that you will have to have madrel bent tubing for the intercooler and cut it yourself to fit. Lets not forget that you WILL have to drill into your oil pan for an oil return line from the turbo and tap the block (near the oil filter) for the oil-in line to the turbo. Also, you will need a MAP-bypass so you don't throw CEL's.

Once you do get teh turbo on you NEED tuning - this is not a plug-n-play project. If you don't tune, you will knock (detonate) and this will kill your motor. So a nice line of electronics (APEX'i boost controller, J&S safeguard, Hondata are a few) will help prevent that, but you will need to hit a dyno to properly tune your A/F ratios and boost limits.

Its a lot of work, but if done properly you'll be happy and you're motor will be too...

also, do a search for this topic has been covered many of times (i mean MANY)