Ok I did a search and did not find a detailed write up of HOW to do the install of an IMRC delete. I am getting a set of deletes from a member on this board, and I am really needing to know how to install them. I have never done any labor on a DOHC so I am a little nervous about all of the horror stories you hear about "it's so easy to screw up a DOHC" so I want to make sure it is done right. How do I perform this install? What do I unplug so I don't trip any codes? Is there any other "PREVENTIVE" maintance I should do while I am in there? I am going to do Fuel Filter, Plugs, Wires, Pulleys, & The IMRC Deletes, should I notice a big diffrence? Is it true I will need a tune? I am running 4.30's, O/R X-Pipe, Mac Cat-Back, WMS Short Ram Intake & soon the above mods. I would like to do longtubes but it won't be real soon, so I would like to hold off on a tune until everything is done. I have 136k and want to "play it safe" if you will, so any help is greatly appreciated.