Head Pipes - decatted stock vs. aftermarket - Road Glide Forums
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post #1 of 26 (permalink) Old 04-12-2017, 09:21 PM Thread Starter
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Head Pipes - decatted stock vs. aftermarket

I've got a 2010 Stage 4 103 - wanting to switch from 2 into 1 back to a dual setup. Do I need to pay big bucks for an aftermarket head pipe? What are the issues with finding a used stock decatted headpipe for 1/4 the cost and using that? (I don't have the original stock headpipe anymore). Looking to go with Cobra slip ons....
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post #2 of 26 (permalink) Old 04-13-2017, 08:22 AM
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I have a stock decatted head pipe that will work for you....boxed and ready to ship....PM me

You have better performance now than you would with what you are going to... FYI.....

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post #3 of 26 (permalink) Old 04-13-2017, 08:31 AM
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Originally Posted by Captain America View Post
I've got a 2010 Stage 4 103 - wanting to switch from 2 into 1 back to a dual setup. Do I need to pay big bucks for an aftermarket head pipe? What are the issues with finding a used stock decatted headpipe for 1/4 the cost and using that? (I don't have the original stock headpipe anymore). Looking to go with Cobra slip ons....
Buy a D&D 2/1/2 head pipe. De-catting a stock headpiece will cause crosstalk on the oxygen sensors and cause improper AFR's and could cause some issues with running lean and cause problems. I know, people on here are going to say it's ok to do it. In real world test on the dyno, it shows exactly what I'm talking about. Do the stock head pipes flow good. Yes, they are not bad. If you could move the bungs up the pipe toward the heads where they wouldn't cross talk, they would be fine.
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post #4 of 26 (permalink) Old 04-13-2017, 09:53 AM
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Smarty makes a point... a good point. They work, good.... but not great. 2-1-2 is a better choice

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post #5 of 26 (permalink) Old 04-14-2017, 09:28 AM
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If you can find one. Get an oem headpipe from a 2009 touring model. These are cat free(except for the cvo's) and the bungs are located up by the cylinders. An 09 cvo pipe would be good if the cat was removed.

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post #6 of 26 (permalink) Old 04-14-2017, 11:32 AM
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Buy a D&D 2/1/2 head pipe. De-catting a stock headpiece will cause crosstalk on the oxygen sensors and cause improper AFR's and could cause some issues with running lean and cause problems.
D&D makes a 2-1-2 headpipe?
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post #7 of 26 (permalink) Old 04-14-2017, 11:01 PM
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I run a fullsac sportpipe and have no issues with sensors or fit, the thing works great, its a 2 into 1 into 2. they also have the next step up the dx pipe.
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post #8 of 26 (permalink) Old 04-14-2017, 11:38 PM Thread Starter
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Thanks for the 2009 feedback - I'll go looking...
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post #9 of 26 (permalink) Old 04-14-2017, 11:51 PM
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D&D makes a 2-1-2 headpipe?
Yes, and it tuned out the best of all we've been tuning.
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post #10 of 26 (permalink) Old 04-15-2017, 12:11 AM
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Yes, and it tuned out the best of all we've been tuning.
Thanks Smarty. I must be looking in all the wrong places unless you're talking about the Touring X Cat 2:2 pipe. Do you have a link?
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