TSB question

[Jonahbonah]

Hey guys,
Recently got a 17 mustang ecoboost and I know there were lots of tsbs dealing with the 15 Pcv and oil cooler pipes and many more things. I'm starting to do some heavy mods and I just wanted to know if these tsbs were already fixed on my 2017 mustang since it was a later year, or if they still made the car with the older parts and I still need to go in to get all the tsbs corrected to the updated parts?

Thanks

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[jbailer]

Yes, but it'll always depend on dates. Anything from 2015 is surely taken care of but the closer it gets to the MY release, the more likely it needs to be done. You should always go by the symptom first rather than looking for a problem though.