| ~ Almost no effort. Either snap on, plug and play or decals. |
| ~ Simple installation with common tools. Usually under 30 minutes. Easy enough for anyone who can follow instructions. A good first project for the inexperienced. |
| ~ A little mechanical experience is helpful but not necessary. A good first project for those with a little more confidence. Will probably take 30-90 minutes. |
| ~ Mechanical experience a definite plus. Not a good first project for the inexperienced. Most likely a 2-3 hour job minimum. |
| ~ Only for the experienced wrench. Most likely requires good tool collection, possibly special tools and a fair amount of experience. Most people will choose to have this installed by a professional. |
| Note: Body parts (hoods, spoilers, etc) are usually listed as 5 wrench due to painting requirements, not installation difficulty however professional installation is recommended. |