675.cc • Triumph 675 Forum

Decat or not??

Discussion in 'Accessories' started by mark connolly, Mar 12, 2018.

  1. mark connolly

    mark connolly

    Thread Starter

    12
    0
    1
    Location: Derbyshire
    i’m sure this has been done to death already (sorry)

    got a 2012 daytona, possibly looking at 3 or 4 trackdays a year, running the Arrow end can.

    are the benefits of removing the cat worth it, less concerned about performance gains, more interested in getting some more howling .

    anyone made the same mod out there can comment on getting through sound level tests at donington, mallory, silverstone please?

    cheers
     
  2. Gremlin

    Gremlin

    578
    37
    28
    Location: Preston
    This is something I'm interested in but am worried that;
    a. I might struggle to get thru track day noise limits with my Yoshi end can and no cat.
    b. I've heard the full Arrow system map from Triumph dumps an excess of fuel into the engine.
     
  3. Im running an 09 with decat headers and arrow end can, I get 104db without my baffle, 101db with my baffle and 96-97db with my stock end can, you need to have it mapped to make the most of it.

    I get rid of the valve as well when I have it done.
     
  4. mark connolly

    mark connolly

    Thread Starter

    12
    0
    1
    Location: Derbyshire
    excellent thanks, is the sound worth while? think i’ll go for it and just avoid roadbike only 98db days then
     
  5. There isn't a great deal in sound difference to be honest! The Arrows can makes the biggest difference.
     

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