Originally Posted by Quball19
I believe this will work
Where did you find that?
I am curious as to why they used 2, 135 Amp circuit breakers and why they thought it necessary to run 2 power cables back up to the engine compartment.
I would add some braided ground cable and run that all the way back to the engine compartment too, so you can be sure to get adequate grounds to your engine and electronics. Just grounding to the car frame or body puts a lot of unreliable metal and resistance into your ground circuit and can cause problems.
I chose the braided ground cable because you can open the braid and secure it with a SS screws and washers to the frame and body along the way which increases the ground contact of them. I also recommend using a smaller piece of grounding braid and running it from the larger braid directly to your ECU to ensure it has adequate grounding.