Here is a test of the turbo exhaust whistle on my Ford Focus. The turbo exhaust whistle is supposed to make a regular car sound like it has a turbocharger on it. The turbo exhaust whistle fits inside of the exhaust tip on a car, and it makes a whistling noise when you rev up the engine. You can buy a turbo exhaust whistle for less than ten dollars on eBay. Watch this video review of the turbo exhaust whistle to see if you need one. Here is where to get one:
https://amzn.to/2NXAydZ