Join Date: Apr 2001
Location: eustis , Florida
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Re: Difference in exhaust components
Dont know about pre-EFI 5.8Ls (`87&Earlier) but the cat outlet on the `86 5.0L EFI and `87-UP 5.8L is 2&1/4", with a 2&1/2" tailpipe on the 5.8Ls. I have found the problem arises in the muffler bracket that FORD changed in `87 models [img]images/graemlins/frown.gif[/img].
I have an `86 and no-one offers a system *before* 87, so i got one for a 87-96 bronco,(Flowmasters #17132) and just fabricated a bracket for the muffler.
Thats all i can suggest, good luck