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  1. #1

    Default Throttle Body Spacer on New GM truck?

    Hi All,
    Has anyone with a new GM truck w/ 5.3L V8 tried one of those throttle body spacers? If so, was it worth it? I'm hot looking for h.p, looking for better fuel mileage.
    Thanks, Matt
    Last edited by MDM081500Z71; 06-15-2008 at 05:50 PM.
    Current truck-
    2008 Silverado LT1 XCAB LONG BED Z71 4x4
    Previous-
    2002 Silverado LS XCAB LONG BED Z71 4x4
    1998 Sierra XCAB LONG BED 4x4
    1998 Silverado REG CAB 4x4

  2. #2

    Default

    A TB Spacer is a waste of money unless you are going to run nitrus. If you want fuel economy spend you money on a CAI, LT Headers with duals and a Custom Tune from someone like Nelson Performance. These are the most cost effective mods for both fuel economy and hp gains at the same time. I would also suggest E-Fans and an underdrive crank pulley.
    Chris S. The GoFastPadre I like to drive fast and I've got the speeding tickets to prove it. 00 Sierra Z71 ECSB K&N CAI Pacesetter Shorties (soon to be replaced with LT's) Magnaflow HFC's Flowmasters with True Duals and H-Pipe more mods to come

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