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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

    Santa Clarita, CA
    2005 FX45
    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

    South Gate, CA
    2003 FX45 AWD
    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

    2014 Mercedes-Benz GL63 4Matic
    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

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