And in my humble opinion horsepower and quiet can be compatible. Get the proper sized pipe for the application, proper internal tube size in the muffler....and the BIGGEST, longest muffler that will fit under the car.
22 years ago I owned a Shelby Cobra replica with a 351C and side pipes. The pipes were chambered and much longer than the mufflers on my Duster. I loved the exhaust note on that car. No drone either.
