Finally modded my stock 2010 ZR1 I’ve owned since new. 9 year GMPP warranty ran out, so it was time. :)

New mods:

LPE 2.6 Upper Pulley
LPE Solid Isolator
LPE 100mm idler pulley
Ported stock LS9 Snout
Kooks Long Tubes with High Flow Cats
LPE Cold Air Intake
Injector Dynamics ID1050X Fuel Injectors
DSX Flex Fuel Sensor (For E85)
Custom Tune

663rwhp and 621 rwtq now from about 550rwhp stock before. It feels noticeably faster and the sound through the long-tubes is amazing.

Note: check engine light is a speed sensor error code from the differential. I think a wire got burned back there from there and I need the shop to fix. Car is running perfectly though.