2008 Cobalt & HHR 2.2L 2.4L Ecotec Tuned ECM (E37)
More Power, Zero Security Lockouts.
Stop letting factory security lockouts and weak stock tuning hold your Ecotec back. This is a complete "Buy It Now" tuned ECM for the 2008 2.2L / 2.4L Cobalt and HHR.
I provide the computer already flashed with the performance dialed in and the security stripped out. It’s a true plug-and-play solution built specifically for the demands of a racing or derby environment. I’ve gone through the core settings—adjusting timing, fuel, and idle—to ensure your 2.2L /2.4L stays in the fight until the end.
Price $240
Performance Adjustments
This isn't just a stock replacement. I’ve optimized the logic to make sure this computer is built to perform in the arena:
Security Removed: VATS/Anti-Theft is completely disabled. It starts every time, no questions asked.
Aggressive Timing: Remapped to squeeze every bit of power out of the 2.2L.
Performance Idle: Meticulously set to keep the engine responsive and ready to hammer.
Fuel Calibration: Optimized for consistent power even under heavy loads and high heat.
Higher Rev Limiter: Pushed up to give you a wider power band when you need to stay in it.
Compatibility & Shipping
Supported Service Numbers: This unit replaces or covers the primary E37 ECM part numbers for 2008, 2009, and 2010:
12625455Â Â
12614676Â
12633056Â
12633238
Direct Fit For:
Chevrolet Cobalt (2.2L Ecotec)
Chevrolet HHR (2.2L Ecotec)
The Details:
Complete Unit: This is a full ECM provided by Backwoods Racing—no core required.
Shipping: Domestic (USA) Only.
⚠️ Disclaimer: Off-Road Use Only. Not emissions-legal for street-driven vehicles. SMN Performance is not responsible for engine damage, fire, or injury resulting from the extreme conditions of competition.