# Engine Swapping

Doing an engine swap, involves creating a command or script to execute the export to set the vehicle engine.\
\
It is important to remember that C.H.A.S.E.R, will not save the swapped engine, and a independent saving/loading system should be made.\
\
Luckly, we already provide a functional demo for that, [and it can be accessed here](https://github.com/LegacyDMC/chaserdemo/tree/main/chaser_db_tuner)\
\
In order to create a command to engine swap your car, create a lua resource and paste the following code:\
\
(Note: in order to swap back to the original engine, simply do "setengine stock")

```lua
local chaser = exports['legacydmc_chaser'] -- the export HAS to be "legacydmc_chaser"

RegisterCommand("setengine", function(source, args, rawCommand)
    if #args < 1 then
        print("Please insert an engine..")
        return
    end
    local engine = args[1]
    if chaser:chaser_getloadstatus() then
        chaser:chaser_setengine(engine)
        Citizen.Wait(50)
        chaser:chaser_refreshengine()
    end
end, false)

```


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