Now we can get started on the fun stuff.....
For instructions I used both the instructions that AGP provides as well as the
Turbo How-To PDF that Scottphphq is hosting right now. I would highly suggest you save that little gem right now. When this thread is completed, or at least through the bulk of the install, I will save it as a single PDF and also host that. Having a laptop in the garage with you is also a great idea
Jacking up the car
If you have never jacked up the car, the jack points are on the sides of the car near the wheels. Look almost under your side mirrors on the front of the car and you should see in the metal underneath the door two triangle notches that are about 3"-4" apart and maybe about 6" away from the wheel. Place the jack inbetween those triangles. The back is the same, look for the two spaced out triangles right before you get to the rear wheels. You don't have to jack up the rear. I do, because my car is lowered and my normal jacks just barely won't fit under the front of the car so I have a small scissor jack to get it going in the back. You may want to jack up one side of the back a little ( I prefer the driver side) so that you can get under where the exhaust is.
Exhaust
I started by removing the exhaust. Depending on the exhaust you have will determine how you remove the exhaust form the car. If you still have the stock exhaust I would recommend starting at the back end. I went ahead and cut the rubber hangers the first time I ever took the exhaust off because you can buy them at Autozone for like $2 each and they are very hard to get off when you have little slack. Once you get the hangers off the rear section, loosen the bolt on the exhaust clamp where the B-pipe comes out right after the back driver side wheel. Twist the exhaust tip section and pull at the same time. Once you start getting the twisting action working it will start to work its way off...its about a good 2" you'll have to work out. Next move to the B-Pipe. Loosen the clamp thats under the gear shifter area. The B-Pipe has a lone rubber hanger back where it goes over the rear driver side axle. At this point the B-Pipe will have enough slack that you can use a screwdriver and pry that sucker off, or you can just cut it. The easiest way to get the B-Pipe off (for me) is to grab it where it makes a 90* turn over to the side of the car. Place one hand on the first bend in the middle of the car, then the other hand over where it bends back towards the rear of the car. Using the inside bend as a pivot twist the outside bend. This will cause the entire B-Pipe to swivel and hopefully work that clamp loose up by the downpipe. Again twist and pull and it will slowly come off. Carefull, it weighs a couple pounds so it will fall when it frees the clamp.
So now you should have the downpipe left. You should see the secondary O2 sensor plugged into the catalytic convertor. You can either remove the O2 sensor from the cat, or unplug the harness from the chassis. I preferred to unplug the harness. A 7/8" wrench will fit an O2 sensor (any O2 sensor) perfectly and is a great tool to have....get one that is about 8" long for leverage. The harness is attached to the subframe. There should be a tab on the top of the harness, push it down and pull the sensor side off. The part that is attached to the subframe is the male end so it is inside the outer harness. Resist the urge to pull on the wires because that could damage the harness.
Once the O2 sensor is out of the way, you will need to remove the 4 nuts holding the downpipe to the O2 housing. Look straight up the downpipe and you will see the nuts. The left, right, and bottom are nuts that screw onto studs in the O2 housing. The top one however is reversed and is a bolt that goes to a nut with a flange on the back side. Normally this is not a problem, but after like the 3rd time I removed an exhaust off my car that flange broke off the nut and it was able to spin freely. If that happens you will need to put a wrench on that nut (easiest from the above the engine) to keep it from turning.
Heres what the O2 housing looks like, just so you can get an idea of what your up against. I used a 3/8" socket wrench and about 2 feet of extensions to comfortably reach up the exhaust tunnel. 14mm socket I believe.
Removing Stock Turbo
At this point you may want to put some labels on all the vacuum hoses so you'll know whats what later on. I just fold some blue tape over the hose and use a Sharpie to write the name. Probably want to note the wastegate, turbo pressure outlet, the TIP on the upper hard pipe, etc...
First things first, we need to drain some coolant out of the engine. This is so that when you remove the coolant lines here in a little while it doesn't make a huge mess. The procedure is very simple.
Next to the Lower Hard Pipe (the rubber hose that connects the long charge pipe to the intercooler) you will see a little spout on the bottom of the radiator. Peel the splash guard back and tucked behind some wire looms above the spout is a white turn handle. I opened the radiator cap before I drained anything, that way air can displace the water as it leaves. The radiator cap is a bit of a pain, you'll have to push it down on two sides to get it to clear the ledges on the underside. Look at the underside of the cap while turning it to see what I'm talking about.
Place a bucket under the spout and turn the handle counter clockwise. You should be able to loosen it by hand...though it may take some work to get your hand in at a good angle. You'll want to drain a descent amount. The bucket I used, the water was about 3" deep. When your done, just twist the white knob clockwise till it won't turn anymore.
The first thing to get removed is the water coolant supply line for the turbo. Its that metal/rubber hose that rubs on all the 3" intakes....you'll be glad to chunk this out. You can go ahead and remove the rubber hose the proper way like I did, or to be honest you can just cut it with some scissors around where the dotted line is that I made. Then shove that metal bullet looking plug included in the AGP kit into the cut hose and clamp it.
Next you can remove the coolant overflow tank located on the firewall. The overflow tank has a screw on a flange up top, then a second down on the passanger side. Remove these. You may want to remove the rubber hose where it connects near the radiator cap. Then you can wiggle the over flow tank out the top. It may help to pull the weather stripping out to get a little more room for that flange. The weather stripping just pops off with some tugging. While your in here find the primary O2 sensor in the O2 housing and follow the harness to where it plugs it. Unplug the harness.
