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RiggerWings
Joined: Wed Nov 15th, 2017
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I don't mean to jack this thread, but Ford had to have installed those pre-cats for a reason. So they aid in a cold start, that's all? Yet, in cold weather it still starts fine. Doesn't add up.
Maybe emissions on the 4.0 were marginal so they added just a bit more to make it pass.
What exactly do you break out of the cat? Just the metal "screen" (honeycomb)? Is there only one layer in there?
Last edited on Thu Jan 11th, 2018 05:58 pm by RiggerWings
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2011 Ranger Sport 4x4, daily
2008 Mustang GT, garage queen
2013 Mazda CX5, grocery getter
2018 Harley Davidson Road Glide Special, the toy