I can't find a clear thread about this, but where in the engine bay and inside the car is the best place to route my wires for my boost controller and my A/F gauge? I can't seem to find a thread that is real detailed with any pictures. Any help would be greatly appreciated!

 

Move the passenger seat forward and get in the back with both seats in the down position. Pull out the rear carpeting section (long horizontal piece above the ecu). Pull off the long horizontal rear leather panel below the glass. Look on the passerger side surface and you will find a rubber plug (it's actually a grommet with no hole...yet). Remove it and poke a hole in it. Feed your lines through it and throught the hole. You will find them hanging down inside the engine compartment on the passenger side. Replace the grommet (with the lines in it) to seal the firewall. When replacing the rear leather panel, remove any clips from the car and put them on the panel first before reinstalling it. It takes a few hits with your fist to get that panel in but it is easy as long as the clips are all in the panel and not the car.