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Engine Wiring Harness Replacements

SPDBOSS

TMO Intermediate
American Muscle says the M-12508-M50 engine wiring harness will not fit a Boss, only a GT, which makes no sense. So I called them and they assured me it would not fit a 2012 or 2013 Boss. I then asked FRPP and they said the M50 harness and the improved camshaft actuators will work on my VIN specific Boss. So my question, can anyone confirm that they have successfully installed the M50 and the improved actuators on a 2012 Boss? I would not want to spend money on new parts and the PRS upgrade only to not have it fit or work properly.
 
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TMSBOSS

Epic Contributor
5,194
2,164
Illinois
HPDE
5-10 Years
There were several failures of the 2012 wiring harness where the only solution was the PRS upgrade. Later Ford upgraded their stuff and from what I recall there were few if any failures with the new harness.
I damaged an actuator and subsequently upgraded all and the harness. It didn’t break as much as I broke the part in reassembly after a valve spring change.
Happy with the new parts so far.
 

SPDBOSS

TMO Intermediate
There were several failures of the 2012 wiring harness where the only solution was the PRS upgrade. Later Ford upgraded their stuff and from what I recall there were few if any failures with the new harness.
I damaged an actuator and subsequently upgraded all and the harness. It didn’t break as much as I broke the part in reassembly after a valve spring change.
Happy with the new parts so
There were several failures of the 2012 wiring harness where the only solution was the PRS upgrade. Later Ford upgraded their stuff and from what I recall there were few if any failures with the new harness.
I damaged an actuator and subsequently upgraded all and the harness. It didn’t break as much as I broke the part in reassembly after a valve spring change.
Happy with the new parts so far.
So you track your 2012 Boss, had harness related issues, upgraded to the FRPP M50 plus actuators, did not do the PRS upgrade, and have not had any more harness issues? About how much track time do you have on the M50?
 

TymeSlayer

Tramps like us, Baby we were born to run...
3,316
2,039
Brighton, Colorado
So as I still am in search of fixing my gremlin issue and not having much luck so far with Ford. I am curious what's happening to the car when this problem occurred? I maybe be reaching for straws here because I'm not getting any codes when my car shuts down.
 

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