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  1. #1

    Default 4 to 8 cylinder switch

    Anyone know of a way to install a switch to control the 4 to 8 cylinders on the GM fuel management engines? Since just the A/C cycling will create enough of a load to demand the 8 cylinders turn back on I want to control it and keep it in 4 cylinders at those times.

    Next question or statement, my 03 burb got better mileage then the 07, anyone have any mods available to increase the gas mileage?


  2. #2
    finalday7's Avatar
    Join Date
    Oct 2007
    Sayward, B.C Canada


    The best mod for gas mileage increse is ease up on that right foot.
    But since that's now fun, Programmers,(Hypertech, Edge, Superchips and so on) Intakes, (K&N, S&B, Airaid) Free flowing exhuast and other simple bolt ons will net you a little increase and a little HP while your at it

    2007 GMC Sierra CrewCab 4.8L
    Tinted Windows, 20" Chrome MB Predators on 275/55/20 Copper AT's, GM Bed Rug, Speed Scene Chrome Grille, Putco Chrome Handles, Hypertech Max Energy Programmer, Magnaflow Muffler and many more mods to come.
    Former GM Vehicles:
    96 Chevy Camaro. My first car modded for a High School kid.

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