Gary760

Is there a calibrater or module I can purchase myself or who will offer this service? I have a 2018 Silverado 1500 LT with the 5.3 l Ecotec3 E-assist. I have tried super chips flashpack but it was not compatible with a hybrid truck and the sales rep said they did not have one compatible. I changed the gears in the rear end and did a lift with bigger tires