Its a bad idea to put a stock maf sensor into a different housing from what I have read. I have upraded mine to the 90mm LMAF but, only after I found out that I could peg the factory one. I also had plans to install a turbo too so, that maf would give me room to grow in the future. If you change the MAF, the new one MUST be calibrated for the injectors you have. or, you will have to be able to change the tune in the EEC with either a chip or a tuner like the TWEECER RT.
No you can't just buy a housing.
If you want a new meter and want it to work right you have a few choices.
An old pro m, newer PMAS (both calibrated for whatever injector you have, look on ebay), or a DBX.
The rest are just a waste of time and money.
I know the C & L meters catch a lot of flack but there are also a lot of people out there that have used them without issue. And, I think those are just the housing with the appropriately sized air tube to match the injectors.
The MAF body and sensor are designed to match each other. Therefore you can't swap sensors between different part number MAF bodies and maintain proper calibration. The assembly is designed to match the computer’s internal program, and swapping a different MAF can upset the computer's calibration. In other words, your monster MAF probably won't match the calibration of your 5.0 Mustang computer.
The only other MAF that is a one for one swap for a 93 and earlier 5.0 Mustang is the 94-95 Mustang MAF.
94-95 Mustang GT MAF - $40-$100. It is 70 MM instead of the stock 55 MM on regular stangs built prior to 94. It uses a slip on duct on the side that goes to the throttle body and a 4 bolt flange on the other. You need a flange adapter to fit the stock slip on air ducting that goes to the air box. Wiring plugs right in with no changes. *1 *2
*1.) Metal flange adapter Kurtz Kustomz Motorsports, Inc. KKM Buy the TR70 for $44.95. Or spend some time on eBay looking for one that may fit.
Try AutoZone and ask for 81413 - Spectre / 3 in. Aluminum Intake Mass Air Flow Sensor Adapter at $12.00. You may have to order it online.
*2.) MAF & sensor interchange
The 94-95 Mustang 5.0 MAF & sensor is also found on:
1995-94 Mustang 3.8L F2VF-12B579-A2A,
1994-92 Crown Victoria 4.6L F2VF-12B579-A2A,
1995-94 Mustang, Mustang Cobra 5.0L F2VF-12B579-A2A,
1994-92 Town Car 4.6L F2VF-12B579-A2A,
1994-92 Grand Marquis 4.6L F2VF-12B579-A2A,
Evidently the –A1A, -A2A, AA, etc. on the end of the part number is a minor variant that did not change the operating specs. You should be able to ignore it and have everything work good.