injen intake
tri-y header
high flow metal cat
2.5" exhaust with resonanter and muffler
hondata s300+ tune

thats like $3.5-4k worth of shit right there (cheaper if you buy used, instal yourself ect) including labour and tuning, expect around 125-130kw atw


and if you wanna be a deadly kunt you can:

3" exhaust
skunk2 intake mani port matched for bigger tb
70mm tb

thats like another $1.2-1.5k, expect 135-140kw atw


car would still be slow though because its a heavy ass prelude lol


my conclusion: leave it stock lmao