I cant speak of the Barton because I ended up with MGW. I can however tell you that I went with the flat stick because I liked the look of it and have no complaints.
Lol yeah I jack the one out of my wife’s 09 Maxima. Fits perfect. I also jacked her yoga mat that never get used and cut it to fit my trunk so stuff doesn’t slide around anymore.
If you have a premium bumper then yes you can go back to the stock valance if you still have it. If you cut your base model bumper then theres no turning back.
Only if it's something they can prove caused the "issue"... Those were the words my dealer told me when it comes to any issues if any. With that being said I've read that the line lock is really only to be used at Ford track days but living here in Missouri we don't see those. My dealer also...
If your wanting 3.73s it only going to be in the Performance Pack unless you wait for the 18 I think. If you're wanting to get into the power faster then 3.73.