Pros and Cons of "True Duals"
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Outstanding HDF Member
Joined: Jul 2007
Posts: 3,341
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From: Woodinville, WA
Pros and Cons of "True Duals"
Please help me out here -
I'm waiting fr my Ultra Limited to show up so lots of time to think.
I want to eliminate the catalytic converter (in the head pipe) and so I figure I'll be changing out the head pipes. This gives me options.
I like the stock look and figured "True Duals" give me that.
I've heard in the past that performance is not as good when you keep the exhaust separate (versus cross-overs for instance).
On my 2001 Fatboy I eliminated the cross-over and have what I consider to be excellent performance.
So - what are the advantages and disadvantages?
I'm waiting fr my Ultra Limited to show up so lots of time to think.
I want to eliminate the catalytic converter (in the head pipe) and so I figure I'll be changing out the head pipes. This gives me options.
I like the stock look and figured "True Duals" give me that.
I've heard in the past that performance is not as good when you keep the exhaust separate (versus cross-overs for instance).
On my 2001 Fatboy I eliminated the cross-over and have what I consider to be excellent performance.
So - what are the advantages and disadvantages?
Intermediate
Joined: Oct 2009
Posts: 44
Likes: 0
From: Central NJ
on my 08 softail custom I had true duals. I felt as if power suffered a bit. Had stage 1, ness sucker. On the 08 Heritage I put V&H big shots on. they have the crossover in them, same stage 1 and ness sucker and performance was up.
Now on the 2010 SG, the system is a true 2 into 1 and performance is the best IMO. The true duals sounded the best
but power lacked.
So, out ot three diff set ups, 2 into 1 is tops in performance while true duals is tops in sound.
Now on the 2010 SG, the system is a true 2 into 1 and performance is the best IMO. The true duals sounded the best
but power lacked.So, out ot three diff set ups, 2 into 1 is tops in performance while true duals is tops in sound.
Thread Starter
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Outstanding HDF Member
Joined: Jul 2007
Posts: 3,341
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From: Woodinville, WA
Interesting - the torque issue is concerning. I'm planning to use SE 255 cams - would that counteract the shift towards higher rpm?
Last edited by davessworks; Oct 30, 2009 at 02:12 PM.
Road Master
Joined: Jan 2008
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From: Canada
I'm not sure that the "Average Joe" is really going to be able to tell just how much your really going to lose. It's not like a 1/10 of a second or 2 is going to be that big of a deal? It is a bagger, not a dragster.
Go with what you like IMHO. 2-1, TD's, cross/ no cross, falsee. You'll be the best judge on the looks and sound that you like. The few HP/ TQ gains or loses should be secondary.
Go with what you like IMHO. 2-1, TD's, cross/ no cross, falsee. You'll be the best judge on the looks and sound that you like. The few HP/ TQ gains or loses should be secondary.
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Thread Starter
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Outstanding HDF Member
Joined: Jul 2007
Posts: 3,341
Likes: 9
From: Woodinville, WA
I'm not sure that the "Average Joe" is really going to be able to tell just how much your really going to lose. It's not like a 1/10 of a second or 2 is going to be that big of a deal? It is a bagger, not a dragster.
Go with what you like IMHO. 2-1, TD's, cross/ no cross, falsee. You'll be the best judge on the looks and sound that you like. The few HP/ TQ gains or loses should be secondary.
Go with what you like IMHO. 2-1, TD's, cross/ no cross, falsee. You'll be the best judge on the looks and sound that you like. The few HP/ TQ gains or loses should be secondary.
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