The best way to get ultimate parts in my opinion. So yep time to start, if you are trying to get ultimate parts without being level 50 then you won’t get ultimate parts when doing a high heat race it will only give parts below ultimate and some cash but when you hit level 50 you will unlock three races called discover or discovery A, B, and C with the final discovery race being the biggest race in the game which wraps around the whole map, but the discovery race that I use is discovery C because one, it goes to a spot by the beach where two high heat level three races two, one of the high heat level races is just straight ahead from the finish line, and three, when doing the discovery C race you get heat level one and if you finish third to first place you could get two heat levels which means right after you do the race you can race for the ultimate part you want but it’s random on what you get and then go to your garage to be safe unless you want to get more ultimate parts and after that you can just repeat this until the races disappear for the night welp hope this helped bye bye.