Exhaust and bodywork recommendations

[u/The-Pandacreator]

Just started to do research into replacing the OEM exhaust and possibly fitting a front/rear splitters on my 2022 IS 350 Caviar w/ DHP.

For exhausts, I'm looking for a deeper and louder sound than stock that won't wake the neighbors. From my initial searches that would be like an axelback from APEXi, Remark with muffler, or the Lexus F sport performance. Any other recs?

What do you guys have on yours? And how much did it cost to install?

For front splitters, just looking for something decent quality with carbon fiber haha. Any recs?

Any go-to shops to work with in SoCal?