Range Active Fuel Management Device
I bought the Range Active Mgt Device for my 2009 Suburban. It was an easy install. Unfortunately it quit working within 2 months of installation and less than 1,000 miles. Auto Anything processed a return/exchange so I'm giving the device a second try. I am hopeful that it will work as advertised.
HyperTech 2012 Suburban 4x4
With the installation of the HyperTech Max Energy Programmer within the last couple of weeks.I can definitely feel the power increase when I step on the gas. I have not yet taken my vehicle on any long trips to see if I get better gas mileage as proposed increase. Install was easy and took 15 minutes. I wish there was refence sheet to upgrade my shift points and rev limiter for even more power gains.