I'm trying to run lines for my AC and I wanted to know what the best way to knock the hole in the firewall is? Do you just bang on it with something or does it need to be drilled?
If you're running the hoses on the driver's side of the engine, use the factory oval-shaped knockout plate. Just whack it with a hammer and drift punch, it'll open right up.
If you're running the hoses on the driver's side of the engine, use the factory oval-shaped knockout plate. Just whack it with a hammer and drift punch, it'll open right up.