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Gains after Long Tubes and Mid Pipe, Tune needed?

Discussion in 'Exhaust' started by Dawilson85, Aug 9, 2019.

  1. Dawilson85

    Dawilson85 New Member Established Member

    Messages:
    27
    Joined:
    Sep 2, 2018
    Location:
    Everett, PA
    Looking at doing long tubes and a mid pipe (h pipe or prochamber) on my Cobra. The car is tuned with a Posi Race Port, 2.76 Pulley, SCT 2600, KB BAP, 60# Injectors and just a catback. Will this need retuned or can I atleast drive it around for awhile before I go to the dyno? Also, what gains can I expect from swapping it out? Thanks!
     
  2. slo984now

    slo984now AKA 01yellerCobra Established Member

    Messages:
    15,114
    Joined:
    Oct 5, 2005
    Location:
    San Diego
    You'll probably need the tune tweaked at least to keep the CEL from coming on. Wouldn't hurt to check the A/F while you're there.
     

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