performance upgrade

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by scottnagl, Oct 6, 2007.

  1. scottnagl

    scottnagl New Member

    i have a 99 w/ a 5.3L it has MAF sensor, throttle body spacer, k&n cold air intake, & flowmasters.question is WHATS NEXT???? im all about the power
  2. dwill3015

    dwill3015 Epic Member 5+ Years ROTM Winner 1000 Posts

    CHIP IT BABY!!!!
    Up to 22+HP increase and 24+Ft-Lbs torque with your particular application!
    Last edited: Oct 6, 2007
  3. finalday7

    finalday7 Epic Member 5+ Years ROTM Winner 1000 Posts

    If your all about power and speed what kind of gears do you have? My f150 with 80 less hp and 3.73 smoked my buddy's 2006 sierra with 3.23 gears, headers, flows and hypertech of the line. Once we got to about 25/30 he would spank me but I have to say at least 3.73 or 4.10 gears should be on your list. I'd go with a nice set of long tube hearders, or if you want to save a little bit of money some nice gibson shorties you can find on ebay. Dual electric fans will get you a few hp and definitly hypertech or edge. It's really just limited by your wallet. :great:
  4. stylinfosho

    stylinfosho New Member

    Build that 4l60e!!!

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