man if you got some tools it's nothing to install the ARC FLOW! loossen the clamp on the intake manifold that holds the rubber boot on, using a 11mm deep socket, loosen it enough to let the clamp fall down, take boot off the stock manifold, loossen the 5 bolts on the intake manifold, they are 10mm, and the small screw that hold the oil dipstick on the manifold, save that screw cause you will use it later on. take the manifold off the truck. go back and loossen the other clamp on the boost tube at the bottom, take both clamps off the truck, and the boot as well, you'll be replacing the boot becase the stock boot is not long enough to reach the new manifold, ATS should have sent you a new hose, and clamps that you will install, take some brake cleaner and make sure that there is no oil on the boost tube at the end where the boot will be on, wipe the tube end off, install the new boot, and the new clamp on the boost tube coming from the after cooler, make sure it's good and tight, you dont want it blowing off, now take the new manifold, and the supplied hardware, there are 5 ports on the manifold that are tapped for things like water meth injectors, propane, NOS, or whatever the hell you want to inject in to your engine, the are 2 ontop of the manifold, and 3 on the back, make sure all 5 of those holes are blocked with the supplied allen hex head plugs, if you ever need to use one of those ports, just take the plug out, and install what your adding to the engine. next install the rubber washers on the long bolts, then the steel washers, slide the bolts in the 4 holes of the manifold, put the manifold on the truck, make sure gsket for the intake is in place still, if gakset is torn or deteriorated, replace the gasket, start the bolts on the manifold with your fingers, then using a 6mm allen hex key, tighten down the manifold. using the small allen screw, tighten down the oil dipstick tube at the top of the manifold, using the old screw that was used to hold down the oil dipstick, screw that in the place of the 5th bolt that was used to hold the old manifold down on the engine itself, the one lone screw that was near the oil fill tube. once that is done, put the boot on the manifold and tighten the new clamp down. your done! start the truck up, hear for leaks, feel for leaks, then go drive the truck and build some boost, again listen for air leaks, if all is good, have some fun! enjoy you new manifold.
wes