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Thread: headers

  1. #1

    Default headers

    I have a 99 Z71 with a 5.3, k&n intake and a y pipe and duals. Will headers, true duals with an H pipe with stock converters make a big sound difference? Which headers make the biggest hp gain in 1-2 rpm long tube or shorty? Will high flow converters hurt the low end power because of less backpressure?
    Any help appreciated.
    Last edited by Jordan; 05-16-2008 at 10:38 PM.

  2. #2


    Hey, Welcome to the site! You will not see and added HP from shorty headers. LT's are the way to go. I have true duals on my truch with Magnaflow HFC's with Flowmasters. In my opinion if you loose any lowend trq it will not be enough to notice. The next mod you should consider is a custom tune eithe Wheatley or Nelson. I will be getting mine from Nelson when the time comes
    Last edited by GoFastPadre; 05-17-2008 at 01:20 AM. Reason: oops
    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

  3. #3
    Jr. Engineer black jack's Avatar
    Join Date
    Aug 2007
    fort myers , florida


    go LT headers with high flow cats you will see a big dif in your truck. i did it with my 05 gto and what a big dif in sound and performance you wont regret doing it.

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