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Idahome
Joined: Wed May 2nd, 2018
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Without the cats in place the computer will still be happy on a properly running 5.0 and you will still pass the PCM and sniffer tests how would I know this? hmmmmm.....not sure. Maybe I passed emissions at the same exact station in Colorado for 15+ years..... I ran my BII through CO emissions with the 2.9L, with the 4.0L and then when I went V8 they made me have it inspected by a referee, added a charcoal canister (Mine was MIA) and then I was allowed to test...always passed with flying colors. IN FACT the 5.0 blows less emissions then the old 2.9L did.......
My 5.0 cat converters in the down pipes look like they are still in place..... they look like stock cats from the outside!! no secondary cats are/were required even the referee agreed with that.
Now in North Idaho no cats are required I will be making custom downpipes, I never liked having the converters near the transmission...the 5.0 drivers side converter is directly nuder the torque converter almost as if Ford wanted the cat converter and the torque converter to be friends. Cat's get super hot....I want that heat past my transmission or no cats would/will be even be better.
A cat converters job is to burn any un spent fuel that makes it through the combustion chamber..with a properly running obd2 5.0 there should not be any unburnt fuel......
I do like the the idea of dual exhaust both exiting on the pass side, makes things much easier.
When people say "true duals" I think same length pipes symmetrical exhaust with two pipes, one on each side of the truck, no H pipe or X pipe, you know TRUE DUALS like a V twin harley or a Rat rod. With a 4x4 this is like.....well its not really possible unless you go outside the frame rails.
outside the frame rails IS a good option on these trucks, there is ROOM for that
Either way you are talking full custom exhaust = $$$$
Last edited on Sat Sep 28th, 2019 11:04 am by 410customs
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks