Any modification in a section of the car in question for warrantee will be denied a claim.
For example a ECU upgrade will void warrantee for the entire engine and gearbox, including exhaust. That means if you had a problem with the stitching on the seats they still have to warrant a claim.
This exact issue came up a couple months back and due to the fact that this guy had a tune on the engine meant that they denied a warrantee claim on the gearbox, and from what I remember was out of pocket by a bit.
Bookmarks