I've just acquired a 04 RSX with 66,000 miles on it. Red, base model, moonroof. spoiler. Good shape overall. Interior is superior.. at least it is until my kid and his crew of bone heads takes it over in September. Car is solid, vibration free. I dug under it and it's never been hit or modified. No service records short of what Acura has up to 2010. Regular service history at dealer then nada after ownership change.
My question is: What to expect or what should I proactively replace now? I have zero RSX knowledge. I have an 06' RL that I know every bolt, screw, spring, and trim piece on. This RSX though has two less cylinders and it's like all small n stuff.
Any suggestions would be appreciated.

 

The timing chain should last you up to 200k miles, if not more.
But change the PS fuild(maybe) once a year when it gets high mileage, serpentine belt, spark plugs, and valve adjustment @ 110k miles.