So about a month ago I decided my 1/8 RC Ferrari needed an exhaust, so took the SBR4's quad exuast and sent it to my local library which has multiple printers. I ended up paying $0.75 USD for the whole thing and it turned out amazing. Here's some pics:
Zortrax printers have insanely good quality. Not cheap however. Looks very good! I’m assuming the car is the Maistotech 488gtb? Thats the only big scale ferrari that comes to mind.
$20 would not be expensive, imo. Few years ago I did look 3d printing a bit and online service gave quote of over 400 for quite small RC part, your exhaust is bit smaller, but considering price difference I would say your library has really good pricing!