Rinehart note change?
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Road Warrior
Joined: Apr 2013
Posts: 1,295
Likes: 485
From: St Louis
Rinehart note change?
Ok I have heard this from more than a few people. They say that after a set of slip-on's break in the note changes. For a long time, I thought that was BS. Well count me as a believer now. The exhaust note CLEARLY changed note on me after a few hundred miles, the note is now deeper and louder. Now I wonder if its a physical change in the slip-on's themselves or if the ECU in the bike has somehow modified to account for the slightly higher exhaust put out. I did not tune the bike with just the slip-on's. My thoughts are that the ECU adapted. Any thoughts?
Road Warrior
Joined: Jul 2015
Posts: 1,512
Likes: 345
From: Ohio
I had rineharts on my road king and they definitely changed note - In my case I didn't notice a really drastic difference until they had been on for nearly 1000 miles.
On that bike I did use a tuner (a fp3).
IMO the exhaust note change was probably due to physical differences in the baffles in the slip ons rather than anything the ECU was doing (or changing). To me the metal in a muffler almost HAS to change considering all the heat up and cool down cycles it goes thru, and it wouldn't take huge dimensional changes to change the tone of the exhaust.
On that bike I did use a tuner (a fp3).
IMO the exhaust note change was probably due to physical differences in the baffles in the slip ons rather than anything the ECU was doing (or changing). To me the metal in a muffler almost HAS to change considering all the heat up and cool down cycles it goes thru, and it wouldn't take huge dimensional changes to change the tone of the exhaust.
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Road Warrior
Joined: Apr 2013
Posts: 1,295
Likes: 485
From: St Louis
Your theory is very sound. with the fp3, your ECU was adjusted immediately so it certainly has to do with the thermodynamic properties of the pipe material itself. I was considering an update to the air intake and an FP3. any louder and I would be on the verge of too loud for me.
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Road Master
Joined: Jul 2016
Posts: 1,080
Likes: 103
From: Lake County, CA
Your theory is very sound. with the fp3, your ECU was adjusted immediately so it certainly has to do with the thermodynamic properties of the pipe material itself. I was considering an update to the air intake and an FP3. any louder and I would be on the verge of too loud for me.
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Ok I have heard this from more than a few people. They say that after a set of slip-on's break in the note changes. For a long time, I thought that was BS. Well count me as a believer now. The exhaust note CLEARLY changed note on me after a few hundred miles, the note is now deeper and louder. Now I wonder if its a physical change in the slip-on's themselves or if the ECU in the bike has somehow modified to account for the slightly higher exhaust put out. I did not tune the bike with just the slip-on's. My thoughts are that the ECU adapted. Any thoughts?
Seasoned HDF Member
Joined: Nov 2016
Posts: 6,088
Likes: 6,446
From: East TN
I know my street cannons changed note and did get louder after about 700 miles. I measured the decibel level new and after 700 miles and the decibel level went up by 8%. Same software, same location for measurement. 8% does not sound like much but it is noticeable. I was told the fiberglass inside the pipe gets "packed down" over time which is why it gets louder and deeper. I have no clue if that info is correct or not. I am a V&H guy on multiple bikes but I will likely stay with my street cannons on my M8, sound great to me. But not too loud at idle.
Road Warrior
Joined: Jul 2015
Posts: 1,512
Likes: 345
From: Ohio
Your theory is very sound. with the fp3, your ECU was adjusted immediately so it certainly has to do with the thermodynamic properties of the pipe material itself. I was considering an update to the air intake and an FP3. any louder and I would be on the verge of too loud for me.
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
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Tourer
Joined: Nov 2010
Posts: 393
Likes: 33
From: Lansdale Pa.
Your theory is very sound. with the fp3, your ECU was adjusted immediately so it certainly has to do with the thermodynamic properties of the pipe material itself. I was considering an update to the air intake and an FP3. any louder and I would be on the verge of too loud for me.
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
Question, on the fp3, is there a standard tune for the rineharts or do you have to use a similar vance and hines pipe since the fp3 is made by vance and hines?
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