The stock ST 280s are actually pretty quiet, a little too quiet imo.
Removing the front silencer was absolutely perfect for me. Adds a noticeable rasp when you're on it but doesn't drone at all at a cruise. Anything under about 1/4 throttle it hardly makes any noise at all in the cabin.
If it's actual engine noise you're after rather than exhaust noise, all Cupras have an artificial induction noise piped into the cabin when you have the engine set to its sportier modes, so this kinda ticks that box for you. A lot of peeps don't really like it though...
The 290s and 300s have more characterful exhausts as stock, but as I've never driven one I couldn't comment on drone.
If you get an ST
280 though, lob off the front silencer and you've got pretty much exactly what you're after.
Sent from my iPhone using Tapatalk