M8 head pipe is it worth it? - Road Glide Forums
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post #1 of 6 (permalink) Old 06-10-2018, 07:27 PM Thread Starter
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M8 head pipe is it worth it?

Is it worth switching out the head pipe? How much of a difference is sound is there?
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post #2 of 6 (permalink) Old 06-10-2018, 08:30 PM
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Are you switching out the M8 or switching to the M8 headpipe? If switching out are you ready to go without warranty? If so I definitely switch to a full exhaust. I personally like the V&H 2 in 1 Pro Pipe but there are many great exhausts. Someone on the forum probably already has done this so it'll be interesting to see how it goes and read the responses. Good luck post what you decide.
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post #3 of 6 (permalink) Old 06-10-2018, 10:01 PM Thread Starter
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I bought a 2018 ultra and don’t want to lose the warranty. S&s makes a epa cert system the el dorado and Harley says that if I use it I still keep my Warranty. As long as the new system is 50 state legal.
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post #4 of 6 (permalink) Old 06-11-2018, 08:26 AM
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I did not swap mine out, my Dyno guy guy told me that the hp gain was minimal and no tq gain. I took his word and left the stock head pipe.


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post #5 of 6 (permalink) Old 06-11-2018, 09:34 AM
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I always Run Full Exhaust,I Put Rinehart Slim Line Duals,An had it Dynoed with a Power Vision.My Friend Just Put Rinehart Slip Ons.Mine Is Louder Especially Behind IT.I Have 1700 Mi. on now Seems like its Getting a Little Louder the more Miles I get.It will be louder without those Cats. An a Different Head Pipe.Rode mine over to Americade Sat.It runs Very Good,So much more Tourqe Than my 103.


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post #6 of 6 (permalink) Old 06-11-2018, 02:56 PM
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Stage 1......sound gain, nothing on performance the Butt Dyno will feel
Stage 2.....really depends on the size of the cam and anything else you add (TB, etc etc)
Stage 3.....Indeed....you need more airflow too take advantage of the added components
Stage 4.....without a doubt...swap it out



Just my .02 and I am sure many will differ

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