Recommended Tuner(s) for 2026 Colorado ZR2

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May 25, 2026
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I have the AFE Cold Air Kit installed and the AFE Scorcher Blue module as well. After 4 months, 2 modules, a circuit board replacement, custom flash and multiple check engine conditions, AFE is working on a final solution and unsure what is causing these issues. This is their last effort on this and will provide a refund if they can't solve the problem. I've been carrying the diagnostic tool with me at all times and prepared to collect codes and erase the CEL conditions when they occure. I don't want to get into the details as there are many but I’m looking for suggestions on a replacement from the group! I'm leaning toward the JB4 tuner from Burger Motorsports as a possible replacement but I’m interested in suggestions or experience with tuning the 3rd generation vehicles anyone can offer. My goal is to improve throttle response and increase torque and HP.
 
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