GM Accessories 86577457 - High-Output L3B Engine Calibration [2023 Colorado]

When you order this product, you will receive an envelope with a unique authorization number. You must schedule an appointment with your local Chevrolet dealer to have the High-Output calibration loaded. Get ZR2 levels of torque with your 2023 Colorado Work Truck, LT, Trail Boss, and Z71 with a gain of 39lb-ft! Before calibration: 310 hp [231 kW] @ 5600 rpm 391 lb-ft of torque [583 Nm] @ 2000 rpm After calibration: 310 hp [231 kW] @ 5600 rpm 430 lb-ft of torque [583 Nm] @ 3000 rpm Not compatible with ZR2. When you order this product, you will receive an envelope with a unique authorization number. You must schedule an appointment with your local Chevrolet dealer to have the High-Output calibration loaded.