Have a 1993 E150 5.8 EFI, stock exhaust. Would like opinions on best setup without spending a lot of money. Thanks

 

Disregarding the money part.....put a single 4" turbo back system on it......of course you need to put the Cummins 5.9 in front of the turbo first....

 

I would recommend saving a lot of money & go with Allied resonators......available at any muffler shop nationwide, are of excellent quality, 1/2 the price of “performance Mufflers”, available in any length from 10" to 38" (IIRR), flow as good as Borla or most any of the "Race Mufflers”, tone is deeper and you get a nice rumble (low) with no drone and none of the tinny "ricer" echo. Allied has been made for at least 30 years and available in just about any diameter you would require (I have personally run these for since the 1970's....nice low rumble on acceleration & deceloration, no drone, deep tone.

 

I had Flowmaster series 40 on my last van. It was a Ford E150, conversion van with a 4.6.
The drone was horrible!

You may be able to cross referance that y pipe number with Donaldson and see what pops up.