The only thing I can really think of is a turbo Anti Lag System that you can get in top-end consumer cars like Mercedes AMGs. It’s that popping you hear when coming off the throttle, you’ll also hear it in rally cars. The funny thing is, the same popping can happen with any car if the timing is off so you sometimes get kids driving around with misfiring engines cause it “sounds cool” even though their car might not even have a turbo fan! It’s one of those things that if they were actually passionate about these machines they’d know they look like idiots, but they’re not so they do.