GM 2.7 turbo JB4
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GM 2.7 L3B Turbo Performance Upgrades Guide

Finally, a turbocharged engine option for GM trucks. The awesome thing about turbocharged engines is you can add a lot of extra power very easily with just a few basic bolt-on modifications like tuning, intakes, and exhaust systems. In this guide we’re going to discuss how you can add up to 100whp to the 2.7…

How AFM Works
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How to Delete or Disable Active Fuel Management (AFM)

AFM or active fuel management is a GM/Chevy technology meant to improve gas mileage. AFM works by deactivating half of the engines cylinders under certain circumstances to reduce fuel usage. It essentially turns your V8 engine into a V4 which saves fuel. GM claims fuel improvements ranging from 5%-15% depending on the engine. So why…