103 Exhaust question
Road Master
Joined: Nov 2009
Posts: 1,218
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From: Yakima WA
My bike had the cat head pipe swapped for a D&D Boss Fatcat 2-1 early on in it's life and have never had a check engine light. D&D even with the open style of baffle still have adequate back pressure to build great torque.
Road Master
Joined: Dec 2008
Posts: 872
Likes: 20
From: Niagara Falls Canada
sensors may cross talk
look how close the sensors are in the stock 2011-12 bikes, Pretty sure I saw something in here a while ago about cutting out the cat material and watching a baffle in side the pipe that keeps rear or front exhaust going to the correct sensor, the 2009 are further up the pipes near the heads and wont have this problem, Im sure the vance and hines pipes will solve the problem the original pipes will fit on them, I dont think it is that much of a change to worry about remapping at this point unless you change the air cleaner out also. the o2 sensors should be able to handle the little bit extra flow and adjust the mixtures
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1st Gear
Joined: Dec 2010
Posts: 5
Likes: 0
Update - I went ahead and installed the dresser duals from VH, along with Rinehart 4" slip ons. I also did put a VH powerpak along with a big sucker stage 1 from Arlen Ness. More than I want to spend, but figured I would be done with the exhaust at least. Noticable heat improvement (not as much as I was hoping for) and definite better sound. I'm mean wow, night and day difference... Strange being able to hear EQUAL exhaust noise in my right AND left ear....
As far as the heat goes, summer in FL = lowers come off.....
As far as the heat goes, summer in FL = lowers come off.....
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Psycho Dave
Milwaukee Eight (M8)
12
Jul 12, 2017 02:27 PM
