I' m getting ready to purchase a power puck and after reading through the installation instructions I found at throughobreddiesel.com I don't see how you can change power settings on the fly when everything looks like it mounts in the engine compartment. Am I missing a step or is there something I' m just not catching. Thanks.

 

There is a three position switch that mounts in the cab to give you 60hp, 90hp or off. It does switch on the fly from inside the cab.

 

Yeah, after looking at the picture I can see that now, I guess I was thrown by their 'no cables through the firewall' statment. Thanks for the answer.

 

On mine I mounted everything inside the truck, alot cleaner if you ask me.

 

That is a clean install. How difficult is it getting the larger wire throught the firewall?