Is this a good system/deal???????
That's one of those things that's been repeated so many times on the internet that a lot of people just take it for granted. Just goes to show you can't believe everything you read on the forums.
A well designed true dual system will not lose power when compared to the stock header system at any rpms. The good 2-1 and 2-1-2 systems may have a slight advantage at low rpms, and the true dual systems might have a slight advantage at high rpms, but on the street, it's often difficult if not impossible to feel the difference in performance between the two. A couple of ft/lb difference at 2500 rpms cannot be felt by the seat of the pants.
A riding buddy of mine put a set of Rinehart true duals on his 07 CVO glide, and had it dyno tuned. He gained both hp and torque all the way across the band, adding almost 11 hp and an equal amount of torque.
Here's a dyno chart that another forum member posted that shows the difference between the stock headers and V&H true dual headers on a 08 Road King. He kept the same slip ons, the only difference was the headers. There's no loss of torque at any rpm.
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Intermediate
Joined: Aug 2010
Posts: 49
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I do believe we are headed towards emissions testing and I will keep it in case those days ever do show up.
Thread Starter
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Intermediate
Joined: Aug 2010
Posts: 49
Likes: 0
That's one of those things that's been repeated so many times on the internet that a lot of people just take it for granted. Just goes to show you can't believe everything you read on the forums.
A well designed true dual system will not lose power when compared to the stock header system at any rpms. The good 2-1 and 2-1-2 systems may have a slight advantage at low rpms, and the true dual systems might have a slight advantage at high rpms, but on the street, it's often difficult if not impossible to feel the difference in performance between the two. A couple of ft/lb difference at 2500 rpms cannot be felt by the seat of the pants.
A riding buddy of mine put a set of Rinehart true duals on his 07 CVO glide, and had it dyno tuned. He gained both hp and torque all the way across the band, adding almost 11 hp and an equal amount of torque.
Here's a dyno chart that another forum member posted that shows the difference between the stock headers and V&H true dual headers on a 08 Road King. He kept the same slip ons, the only difference was the headers. There's no loss of torque at any rpm.
A well designed true dual system will not lose power when compared to the stock header system at any rpms. The good 2-1 and 2-1-2 systems may have a slight advantage at low rpms, and the true dual systems might have a slight advantage at high rpms, but on the street, it's often difficult if not impossible to feel the difference in performance between the two. A couple of ft/lb difference at 2500 rpms cannot be felt by the seat of the pants.
A riding buddy of mine put a set of Rinehart true duals on his 07 CVO glide, and had it dyno tuned. He gained both hp and torque all the way across the band, adding almost 11 hp and an equal amount of torque.
Here's a dyno chart that another forum member posted that shows the difference between the stock headers and V&H true dual headers on a 08 Road King. He kept the same slip ons, the only difference was the headers. There's no loss of torque at any rpm.
Thank you for posting the dyno chart. I feel even better about this purchase. I do question the "pre-programming" of the fuel processor. I know with the invent of EFI it has taken most of the "uniqueness" from these bikes, but I think I will still need it dyno'ed.
Outstanding HDF Member
Joined: Aug 2008
Posts: 2,951
Likes: 6
From: Kingman, AZ
That set-up is very common upgrade, I am betting the map will be darn good. Post up after the install and let us know how it worked out for you.
Road Master
Joined: Oct 2006
Posts: 776
Likes: 1
From:
I just bought one of these: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT only $399 to my front door.
I have to admit I was a bit skeptical, price is too good to be true, but it was the complete system, looks great/fits great/no blemishes, and sounds absolutely incredible! (I heard one of these on a RK in Sturgis, had to have one after that!)
Oh, and it cost me about $50 more in parts to make it fit my 2010 (left muffler hanger & O2 adapters/extension wire), but well worth it.
Oh, and I put it on a 2010 Street Glide, just haven't updated my sig info yet...
I have to admit I was a bit skeptical, price is too good to be true, but it was the complete system, looks great/fits great/no blemishes, and sounds absolutely incredible! (I heard one of these on a RK in Sturgis, had to have one after that!)
Oh, and it cost me about $50 more in parts to make it fit my 2010 (left muffler hanger & O2 adapters/extension wire), but well worth it.
Oh, and I put it on a 2010 Street Glide, just haven't updated my sig info yet...
Cruiser
Joined: Mar 2010
Posts: 139
Likes: 0
From: Helena, MT
I've been looking at this exact system for 2 months, then heard/saw one on a Road King and fell in love! The best price I could find was $845 + shipping, until I stumbled onto this deal. I was worried it would be "seconds" or blemished in some way, but it's the exact same system I was looking for, unopened, in a brand new box. I have no idea how they could sell this so cheap, but I'm glad I found it!
I specifically wanted an '09 system, so I would have the larger oxy sensor "bungs", as the self-adjusting tuners like the ThunderMax use the bigger sensors. I had to buy two more things from Dennis Kirk to make it all work:
Part# 4405079: Python Conversion Kit for 2010 Models with Factory 2 into 1 Exhaust
Part# 4405200: Drag Specialties O2 Sensor Bung Adapter Kit
Total investment for a nice true duals set-up that sounds incredible= $450 including shipping!
A far as the people asking why true duals over a 2 into 1, it's all about looks & sound. NOTHING else sounds like a real set of true duals!
I specifically wanted an '09 system, so I would have the larger oxy sensor "bungs", as the self-adjusting tuners like the ThunderMax use the bigger sensors. I had to buy two more things from Dennis Kirk to make it all work:
Part# 4405079: Python Conversion Kit for 2010 Models with Factory 2 into 1 Exhaust
Part# 4405200: Drag Specialties O2 Sensor Bung Adapter Kit
Total investment for a nice true duals set-up that sounds incredible= $450 including shipping!
A far as the people asking why true duals over a 2 into 1, it's all about looks & sound. NOTHING else sounds like a real set of true duals!
Last edited by CATchaser; Sep 12, 2010 at 04:04 PM.
Outstanding HDF Member
Joined: Apr 2009
Posts: 2,523
Likes: 3
From: Illinois
Even if they do, they can't make it retroactive to apply to you, only on bikes manufactured after the date the law was passed.
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Joined: Dec 2009
Posts: 2,035
Likes: 8
From: Western Canada
The cat doesn't really cause a restriction
Everything I have read says the catalytic converter, in the head pipe, chokes the power and replacing the head pipe will cool it down significantly. I thought about just replacing it and staying with the 2 into 1 but my preference is duals on a touring bike. So it is mostly performance and preference.
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Intermediate
Joined: Aug 2010
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Well all three (Rinehart True Duals, PC V, and Arlen Ness Big sucker were here when I got home from a trip. I started installing everything this morning and to my surprise I finished in the same day (I'm not very mechanically inclined.) WOW!!!! They sound and look great!!! All three were pretty easy to install. I can't believe how much heat is gone. Thank you all for all of your advice!!!