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FX35 Exhaust

Discussion in 'FX (03-08) - Engine & Drivetrain' started by hilex007, Oct 22, 2007.

  1. hilex007

    hilex007 Member

    If I put new Stillen Exhaust for instance, what will my FX gain from it. I heard that I wiil loose some tq. Is that true??
     

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  2. Dr.2K

    Dr.2K iS Doctor on Duty iS VIP

    11,683
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    2005 FX45
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    Yes, if you go with the stillen dual exhaust you will loose some low end torque but will gain some at the top end. Go with a single pipe exhaust like the nismo or hks.
     
  3. EG3

    EG3 Premium Member Premium

    As far as I know, it works like this:
    Your torque curve will shift 500 rpms with every 1/8" change in the main exhaust pipe. That is, with a 3.0" exhaust like nismo (it is 3.0" right?), your max torque will shift 1000-1500 rpms to the right..

    If you care about low end torque, it's best to get a custom mandrel bent exhaust at 2.0 - 2.25 inches size.. If you don't spend much time below 3000-3500, then a single setup will probably satisfy you... I don't know about the max gains though.. I think it was around 8-17 range..
     
  4. HumbertoCALI

    HumbertoCALI Premium Member Premium

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    South Gate, CA
    2003 FX45 AWD
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    In my case... I don't think I lost any Low End...

    feels better than what I had before....
     
  5. Chedman13

    Chedman13 iS VIP iS VIP

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    I don't think you will for a FX45 but only for the FX35. So few dyno's but I'll trust your butt dyno humberto=)
     
  6. brown_fv

    brown_fv Premium Member Premium

    for our 35's id say nismo or HKS...has anyone tried the 2.5" true dual fast intentions exhaust?
     
  7. Chedman13

    Chedman13 iS VIP iS VIP

    9,167
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    Illinois
    2014 Mercedes-Benz GL63 4Matic
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    +1, I love the sound of fast intentions.