Exhaust Smell

FWIW, on the ECU, found this on Google:

http://www.stangnet.com/mustang-forums/threads/is-this-a-mustang-computer.522680/

Claim is that it's a F350 computer. It would also seem that LMR marketed it for a while as an alternative for an A9L/A9P, and that supposedly Cardone was supplying them as remanufactured computers for Mustangs.

All hearsay and advanced Google search skillz, so take with a grain of salt.
 
I've got two A9Ls.

Both havevsame marking in connector

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To my knowledge aftermarket cats don't need the air pump. I've done a bunch of performance exhaust systems and never hooked up the air pipes.

New cats are made with different materials.
 
I was actually considering 2 hi flow cats on my car. Even with perfect AFRs on a standalone ecu it still stinks. Just don't know in my case how much of a restriction it's going to add to the exhaust .