Here is the stock LS1. The first step is to unhook the the battery (just disconnect the black wire). Then unlatch the metal clips at the front of the airbox. They are shown "unlatched" in this photo.
Next, disconnect the IAT sensor plug.
Note: where the hole is in the photo is where the actual sensor will be, and the plug shown just attaches onto the end of it.
Then you will need to disconnect the MAF sensor plug...it just unclips like the IAT sensor connector. Loosen the collar that connects the tube from the MAF to the throttle body. At this time, I also loosened the eliptical collar that connects the air lid to the MAF to allow room to "wiggle" the parts out if needed. This can probably be omitted.
Next remove the whole intake system from the car. This starts at the begining of the lid, all the way back to the tube connected to the throttle body. Just leave all the parts inbetween connected together. If you aren't sure what to remove, see the picture to the left. That is what you are going to pull out.
Now your engine should look like this. The picture already has the K&N in place. *NOTE* Do not let ANYTHING get into the throttle body, some people will stuff a rag into the opening just to make sure nothing gets in there...I just made sure nothing fell in and hurried installing the rest of the parts to keep it fro
Just take your new lid/modified maf piece, hook the tube coming off the back to the throttle body, and try to snap the new lid into place. This will be very difficult at first, as the lid is a tight fit. Just make sure you can clamp down the metal clamps....if you can, its probably seated correctly.
Finally, go ahead and reconnect the MAF sensor cable to your newly ported MAF, and reconnect your IAT sensor cable to your IAT sensor. Double check everything, and you should be ready to reconnect the battery cable and start the car! Remember, if your battery has been disconnected for an extended period of time (which it should have been by the time you are done with the install) your computer will need to relearn some ratios. Just let the car idle for 10 minutes or so, then slowly rev it a few times. After that, you should be set to go!
