Have a 1994 Ford F-150 5.0 EFI
I want to go true duals but I can't get past the O2 sensor
and the Cat my local exhaust shop won't do it for me bc
my Cat has dual in single out and I can figure out how to
upgrade my full exhaust from headers to tru duals
To keep it smog legal you are stuck with the single pipe. Maybe you could run the headers into a 3" or 4" pipe and then split it to the dual exhaust pipes.
Magma flow 94007. Dual in dual out catalyst.
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