In terms of added cylinder pressure and needed internal mods to carry extra load, hardware wise I would think upgrading the rods and its hardware, along with pistons at the very least. Also increase oil spray volume to quench away added heat from bottom side of pistons. Power to the ground wise best move would be upgrade CV half shafts, and Driveshaft. Wonder if they would consider upgrade on Torque converter. Upgrade fuel system especially pump for volume increase w/E85 and longevity if they are giving same length of warranty. Differential great opportunity here as well. They had problems with some of the Demons at 840 HP. when they grenade a shit ton of damage can result. Maybe just throw a bone to the Diff brace vendors and call it a day. On second thought no need to see below.
The huge delay with the last release was they had to get crash test certifications because they really wanted to do it right and do a beefy narrowed rear end section with beefed CV half shafts, mini factory tubs, sucked in frame rails to give us all what we wanted since it first came out…. Lots of tire all inside wheel well lip. All on a limited batch run on the very last year model Just to handle the new upgraded 1150 HP 426 stroker Helephant with E85, pump gas, and race gas tune all at he flick of a button on center stack. Then I woke up and realized only a dream. No I wasn’t soaking wet. But is nice to dream.
On a serious note the top paragraph is what I think the minimum should be especially if they are going to try and Cary normal warranty without any angry customers.