Ecoboost power add-ons that don't kill warranty?
#2
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#4
Senior Member
Cat back
#5
#7
Surely a cat back system wouldn't affect the warranty, though, right? Not like it messes with anything important or functional, aside from the muffler.
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#9
93 octane gas.
And that is it if you want guarantees.
And that is it if you want guarantees.
#10
Senior Member