Header Pipes on 2010 Ultra
Thread Starter
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1st Gear
Joined: Aug 2010
Posts: 5
Likes: 0
From: South Carolina
Header Pipes on 2010 Ultra
I know there are numerous threads of a similar nature on here but I still have not read the answer to this question.
I want to replace the header pipe to reduce the heat from the cat. All I want to do is replace the header pipe. I want to leave the rest of the bike stock. I don't need it louder or additional performance.
If I just replace the header pipe and leave everything else just as it is (stock) do I have to install some sort of fuel management system? Or will the ECM make the adjustments? I know that opening the header pipe would theoretically make the bike leaner but I've also read that the ECM will adjust.
Has anyone else done this yet and what were your results? Can I just replace the header pipe and make no other changes? Any advice is appreciated.
I want to replace the header pipe to reduce the heat from the cat. All I want to do is replace the header pipe. I want to leave the rest of the bike stock. I don't need it louder or additional performance.
If I just replace the header pipe and leave everything else just as it is (stock) do I have to install some sort of fuel management system? Or will the ECM make the adjustments? I know that opening the header pipe would theoretically make the bike leaner but I've also read that the ECM will adjust.
Has anyone else done this yet and what were your results? Can I just replace the header pipe and make no other changes? Any advice is appreciated.
Extreme HDF Member
Joined: Dec 2006
Posts: 10,045
Likes: 36
From: ST. Louis
That's what the O2 sensors are suppose to do. I don't see a problem. It shouldn't hurt your motor.
But a Stage 1 or a SEST will reduce your heat also. So you might want to think about it too.
But a Stage 1 or a SEST will reduce your heat also. So you might want to think about it too.
Tourer
Joined: Jul 2008
Posts: 379
Likes: 1
From: Central Wisconsin
I'm not an expert but from speaking with my dealer I would say you could replace the header pipes leaving the stock mufflers with no problem. The reason I say this is I know two people who put on free flowing mufflers on 09's (no cats) and K&N type filter but not the whole air kit and they have had no problems. The dealer did the work on both bikes and the bikes run great. You would just be removing the cats but still leaving the more restrictive mufflers in place.
Seasoned HDF Member
Joined: Sep 2009
Posts: 25,310
Likes: 2,446
From: Eastern NE
As long as you're not in any of the EPA-mandated inspection states - you should be good to go. Swapping CAT to non-CAT won't affect set-up & O2's should adjust. Also, another option is to have the CAT extracted from your header - if yo do a search there are posts showing how this is done & best bet, if you're not comfortable w/modifying, is to get in touch with a custom bike shop who can cut & weld exhaust. Good luck!
Road Warrior
Joined: Jul 2010
Posts: 1,816
Likes: 2
From: New Hampshire
That looks pretty scary
I think my RK will be leaving the dealer with new header pipes before it is delivered to me in December
To echo the OP, if you replace just the header pipes would you need a fuel managment system installed?
Dawg
Last edited by Port Dawg; Aug 16, 2010 at 02:40 PM.
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Thread Starter
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1st Gear
Joined: Aug 2010
Posts: 5
Likes: 0
From: South Carolina
Thanks for the replies. I don't want to remove the cat from the original pipes. I want to save them just in case they ever start doing inspections in my area. But I do want to get rid of that heat from the cat, so I'm looking to install the Fullsac X-pipe.
I've also been reading about the X-IEDs. I think that may be a good combination with replacing the head pipe to richen it up a bit to help cool it down some more. Anyone been using the X-IEDs?
I've also been reading about the X-IEDs. I think that may be a good combination with replacing the head pipe to richen it up a bit to help cool it down some more. Anyone been using the X-IEDs?
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Road Warrior
Joined: Feb 2007
Posts: 1,730
Likes: 199
From: Vancouver BC
IMO, getting a tuner and having your bike tuned so it's not running EPA lean will cool it down more than removing the cat equiped header. Mine runs as cool as my '02 did and still has the cat......
