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Type: Posts; User: magnumspots

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  1. The shifting from 8 to 4 when driving around town...

    The shifting from 8 to 4 when driving around town is loud and its an aggressive shift. I would just rather run on 8 cylinders the entire time. On the highway it definitely makes a difference in gas...
  2. Range Active Fuel Management Device for GMC - Worth it?

    I got a 2015 GMC Sierra a few months ago and I am not a big fan of the AFM system. Has anyone out there used the Range AFM Disable device? Does it perform as advertised and how have you liked it?...
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