I just did my 2005 and added foam to the seat buckets.
The Factory foam was breaking down and really poor quality.
Looking thru the manuals for mine and 2011 and up there is nothing about recalibrating unless there is a problem encountered on re-powering the SRS.
(You MUST de-power the SRS before doing anything)
On a 2005 it means pulling the fuse #17 from the fuse box in the right kickpanel. Dont know about yours LOOK IT UP.
http://iihs.net/fsm/?dir=1052
I will tell you this though.
It is work and you will need some tools to do this, and help at times from a buddy.
The Hog Rings are not so bad to remove but putting back in is a bitcha.
I ended up using pull straps instead, and I had the hog ring pliers and rings available.
The Hog Rings tie the foam to the fabric in case you didn't know that.
Be careful taking them out or you will pull the tie bars out of the foam.
Two rows on the Back and One on the Bucket.
Gotta say an upholsterer must have the grip of a gorilla.
Also pay really close attention on dis-assembly how the cover attaches to the seat especially around the hinges. Take pictures!
And all those plastic trees you will need to replace. They break more than not.
Also there is a plastic rivet on the hinge itself that retains fabric over the metal of the hinge on the back. Your local Orielly's wont have them either.
Trees yes, rivet no.
I ended up using 3M 77 to just glue the cover in place. There is no tension on the rivet and all it does is retain the cover fabric.
One more hint.
The Headrest retaining tubes you get out after you roll the cover up the back.
Once you can get to the bottom of the retainers, use a hammer and tap them up and out of the seat frame.
The bottom of them looks like it should be squeeze and push out. But they aint. They are retained at the top of the seat frame by interference fit.
Look over the lumbar pad mechanism while you can. Fix it if needed, they have been known to break. Mine actually didn't have the spring on the fulcrum point installed and never did. So it only worked half the amount it should have, Does Now!
FYI the seat frame is built like a tank.
One well built ton of metal.
Good Luck and don't get discouraged.