cobalt bypass module

What is the correct bypass module to add remote start to a 07 chevrolet cobalt   I have found so many not sure what to use and have it last

Your car has the PassKey 3+ immobilizer system. 

 Depending on the cars options ( power locks, alarm, etc )  you could get a bypass that does only the bypass function or get one that does a lot more. 

 The basic bypass uses a transponder and ring antenna.  They are less expensive but  antenna positioning and extreme cold can make them less reliable.

The better modules use a data connection to bypass the cars immobilizer.  They cost more and usually require loading them application specific firmware with a special cable.

There is one brand that does everything and comes preloaded with the correct firmware.  Check out the Fortin CAN SL2 at :  https://ifar.ca/en/products/flash/can-sl2/files.html 

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