Yesterday I spent several hours installing a bunch of firewall components. I started by drilling a 2″ hole for the stainless steel heater box. I then positioned it and drilled the two holes for mounting. 

It came with a tube of firewall sealant, I lined the underside and then bolted it in place. 

A tube will attach to this end and a heat muff surrounding the exhaust on the other. 

I then began measuring and lining up the battery tray. I’m going with an EarthX lithium battery. 

This is mounted using three bolts from the inside of the firewall. I also installed my vent line ports. These are some fancy aerodynamic covers that I got from JD Air. They require a 5/8th hole and mount from the inside. 

Here are the two vents installed. 

I then installed the brake reservoir. It’s mounted on the passenger side in case I want to add copilot brakes later on. 

The hydraulic low pressure line attaches to the inside of this reservoir. 

Lastly I installed the master relay and starter relay. This took some work mainly due to the slightly different battery case. I had to drop the pair down a bit lower than the standard installation spot. 

Here’s everything installled on the firewall. You can see the relays just below the battery. 

Next up, firewalls recess, then the engine mount.