If that's so, then every other hobby, from knitting to volleyball must be the same.
Modifying vehicles for better performance is a time honored and productive American pastime.
In fact, it's what got me interested in engineering - building bigger and better hot rods. I can hardly wait for the warranty to be up on my Lincoln Town Car so I can replace the 4.6L 220 horse motor with a 5.4L 380 horsepower supercharged SVT Lightning truck engine - with a few tweaks, of course.
But don't worry about the noise. The engineering challenge here will be to make it free flowing yet as close to stock sounding as possible. After all, it is a Town Car and some appearances must be maintained.
And the fun part will be eating Mercedes and Beemers for breakfast with Grandma's ride !
First of all, knitting is practical and so is volleyball, but that is besides the point.
If you need your car to be so loud as to announce the fact that you are on the road... if it is loud for no other reason than to be loud, then you have issues.
Better performance is all well and good. Disturbing the peace just to let everyone know you've started your engine is quite a different matter.