Mustang GT 5.0L Headers & Cats

[Gtfold00]

Hi all, I''ve purchased Left & right Headers – 1 7/8″ with 3″ for my 2017 GT. I've also purchased some extension leads for my O2 sensors.. I know there has been heaps of forum talks about exhaust/ headers. My question is, would I need to get a tune after I install the headers for a (AU) mustang?

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[v8hgt]

Yes

 

[Yellow Toy]

Im not sure if you have to, but its best to to take advantage of the engines better breathing now..
Im actually doing the same, mine is booked in for next week, fingers crossed..

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