Originally Posted by MCOR

I see no problems with it. Remember your inline fuses though at the battery and at the engine compartment (150 amps should do it on each end). If the 4 ga wire were to short say in the door area if the car were wrecked, you run the risk of turning the car into a big welder-massive fire, possible explosions.

Some don't deem it necessary, we do. I won't do a battery relocation here without it (or add second battery). I would rather pass on the job...