-- name shits
local yourusername = "poopfart69"
local yourcardata = "ShitBox"
-- front shits
local frontshitdiam = 0.67
local frontshitwide = 0.67
-- rear shits
local rearshitdiam = 0.41
local readshitwide = 0.41

-- code shits no touchy unless smart nerd
local args = {
    game:GetService("ReplicatedStorage"):WaitForChild("PlayerData"):WaitForChild(yourusername):WaitForChild("Inventory"):WaitForChild("Cars"):WaitForChild(yourcardata),
    {
        FrontDiameter = frontshitdiam,
        RearWidth = rearshitwide,
        FrontWidth = frontshitwide,
        RearDiameter = rearshitdiam
    }
}
game:GetService("ReplicatedStorage"):WaitForChild("Systems"):WaitForChild("Customization"):WaitForChild("ApplyTireResize"):InvokeServer(unpack(args))