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need some quick info

This is a discussion on need some quick info within the External Engine forums, part of the LSx Technical Help Section category; I have an LS1 swap in my RX7 I just want to know how should I do my exhaust? piping:2 ...

  1. #1
    FC3S
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    need some quick info

    I have an LS1 swap in my RX7
    I just want to know how should I do my exhaust?
    piping:2 1/2 or 3 inch?
    exhaust system:H-pipe?X-pipe?or dual exhaust(just straight through)?

  2. #2
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    In my Miata LS1. Used 2.5" duals, x-pipe, cats, bullet style mufflers & resonators. Sounds awesome, not too loud. Also have custom made 1-5/8" long tube headers. Flow is good. Would definately run duals through either an x or an h not without. Use of 3" or even normally sized mufflers may be tight &/or hang too low. Although, there are those whom have used Magnaflows buried up under the rear.

    BTW, my set up flows well enough to support flow from AFR 205's, Comp cam, Weiand intake, 78mm ported TB & MAF.
    Last edited by LS1-450; 09-26-2005 at 02:55 PM.

  3. #3
    FC3S
    Guest
    Quote Originally Posted by LS1-450
    In my Miata LS1. Used 2.5" duals, x-pipe, cats, bullet style mufflers & resonators. Sounds awesome, not too loud. Also have custom made 1-5/8" long tube headers. Flow is good. Would definately run duals through either an x or an h not without. Use of 3" or even normally sized mufflers may be tight &/or hang too low. Although, there are those whom have used Magnaflows buried up under the rear.

    BTW, my set up flows well enough to support flow from AFR 205's, Comp cam, Weiand intake, 78mm ported TB & MAF.
    Thanks for the info
    anyway,I also have another question:where can I find an aftermarket intake manifold and I read in the "Top 10 Mods",SAFC ? what is that?I'm use to the import crowd and SAFC stands for "super air fuel controller"

    -sorry for the questions,thanks once again!

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