Exhaust
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Intermediate
Joined: Feb 2018
Posts: 31
Likes: 6
From: North Carolina
Exhaust
I recently bougjt a 2007 road king with 21000 miles on it. It already has the Arlen Ness high flow breather on it and a set of Vance and Hines true duel pipes . They look to be about 2 and a half at the back. Can anyone tell me what the gains are for this set up and what kind of pipes these are called. And about what a set like this would cost. I'm curious.
Club Member
Joined: Jun 2007
Posts: 45,429
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From: Bedford UK
Gains are mostly sound IMHO, as some owners like hearing a similar noise out of each pipe. On the other hand true duals also steal low/mid range torque, compared with better set-ups, so there is a downside. The Vance and Hines website will give details of your system, we can't actually see it in your photos.
Outstanding HDF Member
Joined: Aug 2016
Posts: 2,046
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From: Denver CO
To get a solid number, you need to have the bike dyno'd. Not a simple answer of course, but there are too many variables IMHO to try to guess. As to cost, look at eBay recent sales and see if you can find ones that have sold and what they are getting.
Road Master
Joined: Sep 2007
Posts: 779
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From: Fredericksburg, VA
They are most likely the Vance and Hines BIG SHOT DUALS...
https://products.vanceandhines.com/store/harley/17925/
The cost new is around $800
As for performance "gains" wouldn't know.... I had Rinehart Classic True Duals and just swapped to Rinehart 2:1... And I can tell the 2:1 is ALOT SMOOTHER in the power band then the True Duals were... But I also have the Rinehart Intake and a PC5 for mapping...
https://products.vanceandhines.com/store/harley/17925/
The cost new is around $800
As for performance "gains" wouldn't know.... I had Rinehart Classic True Duals and just swapped to Rinehart 2:1... And I can tell the 2:1 is ALOT SMOOTHER in the power band then the True Duals were... But I also have the Rinehart Intake and a PC5 for mapping...
Thread Starter
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Intermediate
Joined: Feb 2018
Posts: 31
Likes: 6
From: North Carolina
Exhaust
Thanks for the info. I have a lot to learn about what worjs and what doesn't. My first bike was a 1976 Sportster. And that was before I had three youngsters. So I had to wait awhile to get my second and third bikes. I also have a 2012 ultra. And love both of the bikes. Anyway a lot has changed since the old days. Thanks
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