I recently bought a 2009 zr1 with mods from a dealership and only have a list of modifications from the previous owner.
I have the original tune file and the Dyno tune file from a shop that I'm weary of after my car died 2 min after leaving the shop, the crank shaft position sensor went out and I had to get my car towed back home, replaced the sensor, new NGK TR7IX plugs and wires then the starter died lol, replaced the starter.
Mods list
New 416 engine built by Scogging Dickey performance with forged internals and new LS9 block, PRC heads, Trunion upgrade, 3/8 push rods, Johnson lifters, Comp cam, Kong ported blower, Kong Griptec Pulley 2.55" LPE Hub, Kong fabricated snout, Kong reinforced bricks, Kong divider, Kong carbon fiber intake, Ati dampener, FIC 127lb injectors, McLeod clutch, Remote bleed, New GM slave, PLX DM-6 wide band, DSX aux fuel system, Corsa 2" headers, MM catch can,
112mm Nick Williams throttle body.
I see a DSX Flex fuel system and a chip that lights up green in the engine bay also.