Welcome to GTA5-Mods.com

@Cass Yep, I've tried injecting as a .dll and the game crashes instantly
@drp4lyf Is the mod working properly? or is it something I'm doing wrong?

@Gta5KoRn same for me, I can't spawn the vehicles via cheatcode, although the .log file shows that the vehicles are there and working

@gamerpro023 It's already included in the sound mod ;)
You just need to go over to Los Santos Customs and install the Turbo Upgrade in your car

@OP_coop After you replaced the sound of the trophy truck (the directory is "update\x64\dlcpacks\mpstunt\dlc.rpf\x64\audio\sfm\dlc_stunt\") with the one I provided, you just need to go in-game, get in a car of your choosing, open Menyoo and go over to:
Vehicle Options > Menyoo Customs > Engine Sound > Input Model
Just write TROPHYTRUCK and done

@OP_coop This sound mod replaces the sound of the Trophy Truck.
You can swap the sound of any car with a trainer like Menyoo