Absolutely. There isn't that much room between the motor and that firewall to begin with, and with that harness in a fixed position, getting a motor in and out would require you to really bend that harness. I almost touched the bulk head connector getting mine in, and that's only a inch long. I couldn't imagine snaking my harness through a firewall and then under a intake in the car. In my opinion you would be giving yourself grief this way. Don't mean to be the bearer of bad news, but there is too much going on back there to have it just come out of a grommet in that position.