performance chips
Veteran Member
Joined: Dec 2011
Posts: 5,317
Likes: 635
From: upstate new york
I don't think "chipping" the XF is the way some members have chosed to gain horsepower. ECU (reprogramming) tune seems to be the method here. If you search for ECU tune or tuning, you will likely get some info on what some have done.
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