Welcome to Our Community

Wanting to join the rest of our members? Feel free to sign up today.

Sign Up

Another "baffling" question.....

Discussion in 'Exhaust' started by drK-9, Nov 4, 2017.

  1. drK-9

    drK-9 Member

    Joined:
    Oct 7, 2017
    Messages:
    30
    Likes Received:
    51
    Trophy Points:
    18
    Location:
    Wichita, KS
    My Bike(s):
    16 Streetglide, 07 Softail Custom, 08 BigDog K-9, 07 BigDog Bulldog, LE
    First Name:
    Craig
    So before I remove the baffles on my new to me 08 K-9, I want to make sure it won't cause any motor problems. I am sure this topic has been already beat to death on this forum, but I've been searching all morning and can't find the answer! I am looking to make a little more sound and love these stock V&H pipes on the bike. I can see how to remove heat shields and baffle nut, and it looks like they slide right out. I just don't want to burn the valves or cause and engine harm lessening the back pressure. It is also a fuel injected bike if that matters. Thanks!
     
  2. Jwooky

    Jwooky Well-Known Member

    Joined:
    Dec 11, 2011
    Messages:
    1,637
    Likes Received:
    1,247
    Trophy Points:
    113
    Location:
    Oxford, MI
    My Bike(s):
    2008 Mastiff EFI
    First Name:
    JJ
    Absolutely will not hurt anything. Practically every bike on the planet does so.

    Worst case you may want to tweak the jetting for optimal performance.
     
    bigkelk9 likes this.
  3. Billy the kid

    Billy the kid Well-Known Member
    Supporting Member

    Joined:
    Mar 20, 2010
    Messages:
    3,894
    Likes Received:
    2,496
    Trophy Points:
    113
    Location:
    Gunnison colorado
    My Bike(s):
    Bigdog Ridgeback 2006, 2010 Harley CVO ultra electra glide
    Take them out :oldthumbsup::chopper:
     
    bigkelk9 likes this.
  4. bigkelk9

    bigkelk9 Well-Known Member
    Supporting Member

    Joined:
    Sep 7, 2015
    Messages:
    3,119
    Likes Received:
    5,564
    Trophy Points:
    113
    Location:
    Southeast Texas / Southern California
    My Bike(s):
    07 big dog k9
    First Name:
    Kel
    Yeah, my bike doesn't have n e and hasn' since I've had it. A little tweaking of the carb will definitely be needed. Good luck
     
  5. Reddickracing

    Reddickracing Active Member

    Joined:
    Jun 9, 2017
    Messages:
    690
    Likes Received:
    1,124
    Trophy Points:
    93
    Location:
    Louisiana
    My Bike(s):
    2006 K9, 07 Streetbob
    First Name:
    Jeff
    Fuel injected, you don't need to tweak any. That's what the O2 sensor is for. Take em out, I took out on both my fuel injected Harleys.
     
  6. Jwooky

    Jwooky Well-Known Member

    Joined:
    Dec 11, 2011
    Messages:
    1,637
    Likes Received:
    1,247
    Trophy Points:
    113
    Location:
    Oxford, MI
    My Bike(s):
    2008 Mastiff EFI
    First Name:
    JJ
    I missed the Fact it’s EFI.

    It will absolutely self tune for pipes.
     
  7. drK-9

    drK-9 Member

    Joined:
    Oct 7, 2017
    Messages:
    30
    Likes Received:
    51
    Trophy Points:
    18
    Location:
    Wichita, KS
    My Bike(s):
    16 Streetglide, 07 Softail Custom, 08 BigDog K-9, 07 BigDog Bulldog, LE
    First Name:
    Craig
    Removed baffles, sounds great! Thx for the help!
     
    SCOTTx88 and BWG56 like this.
  8. SKOGDOG

    SKOGDOG One of the old ones.
    Supporting Member

    Joined:
    Sep 21, 2009
    Messages:
    1,554
    Likes Received:
    2,575
    Trophy Points:
    113
    Location:
    Pittsburg, Kansas
    My Bike(s):
    2008 K9-2010 Bulldog Bagger
    First Name:
    Rick
    I think if you alter the baffles OR open up the intake, the existing ignition/fuel program will adapt. It is my understanding that the stock map cannot adjust to opening both the intake and exhaust--BDM of course used EPA approved modules.
    Run it a while and look at the spark plugs to see if they get too light...
     

Share This Page