I got a Defi Boost Gauge today and was trying to fire it but I can't find a suitable spot where I can run the signal connector through the firewall. Can anyone tell me the best place to run it?

 

passenger side, access below glove box. Be careful, ecu wires also run along side..poke through with long phillips screw driver

 

Do I have to remove the glove box to get to it or it's visible as is?

 

visible from below just get down low

 

It is much easier if you remove the glovebox (which takes all of 15 seconds). The grommet will be towards the top of the firewall (behind the shock). I would recommend using a coat hanger that you have straightened to fish the wires through the firewall...Good luck

 

^ I wasn't referring to that one, for me that's almost impossible for my hands to reach.