You can do it yourself as long as you have a good set of tools, and access to a tool store close by. I say access to a tool store because you may need a swivel connector, crows feet, etc, or some other wierd tool you may only use once, but need desperately. Installing my friends equal length was easy, but we till needed to loosen the motor mounts and jack up the motor to get the headers past the master cylinder. The other trouble we had was getting the Mac headers to line up with the Header H-pipe, to line up with the stock muffler/pipes. I would start late afternoon on Friday, so you have Sat and Sun to finish. But do it yourself for sure. Don't pay someone to work on your car if you can help it.