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EP3R - Worth upgrading catback from 60mm to 70mm?

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    EP3R - Worth upgrading catback from 60mm to 70mm?

    Hi ClubITR!

    As title says, I have a 60mm catback exhaust, the Fujitsubo RM01A.
    Great exhaust from all 2 years of it being installed.
    Quiet enough to be classified as 'not too bad' by the HWP.

    Recently a lot of parts for EP3R came up for sale and I've snatched up a quite a haul.
    If everything gets installed, it would end up as...
    • GruppeM intake
    • RRC intake manifold + Skunk2 TB
    • PLM header + 100cel cat
    • Fujitsubo RM01A
    • Hondata KproV3


    Based on these 'breathing modifications', would a 70mm catback be recommended prior to tuning?
    Does the 70mm have THAT much more potential?
    Is it possible to keep a 70mm quiet?

    Many thanks!

    #2
    RRC intake manifold and throttle body on. Tune is happening late next week.
    Really looking for your opinions right now.
    This car will be used as a daily driver.
    I have my eye on a 70mm titanium catback exhaust, but I haven't convinced myself to want it enough...

    Comment


      #3
      if you think you will be doing 160kW+ you are dreaming...
      ... retired/

      Comment


        #4
        bigger the better

        sourced from my opinion

        Comment

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