Why "true duals"
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Elite HDF Member
Joined: Jun 2006
Posts: 3,572
Likes: 5
From: Templeton California
Why "true duals"
What is the advantage of true duals as opposed to a 2 into 1 into 2 or a 2 into 1? I know that it has an advantage in dyno tuning as it makes it easier tune each cylinder separately but is it really any better HP or torque wise?
Road Master
Joined: May 2007
Posts: 1,034
Likes: 3
From: Open Road, USA
Putting true duals on is only part of the solution. When I had my cam tensioners updated to the hydraulic type, I had Andrews 26 cams installed. I then put on a dynojet tuner and then true duals. My bike runs better, cooler and has lots of torque. I have never had it dyno'd but would like to. I love the way they sound and the performance is better than stock...
Grand HDF Member
Joined: Sep 2009
Posts: 3,806
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From: Green Country Oklahoma
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Outstanding HDF Member
Joined: Jan 2007
Posts: 2,598
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From: Naples FL / Pine TWP PA
True duals provide a performance loss. On the older bikes it looks better than the factory exhaust and provides a bit more passenger and rider comfort by getting some of the exhaust heat away from you. Two into one is the best for performance but they do not look too good on a bagger. A few companies have gone to slipons that kind of fake the two into one thing by making the left baffle high resistance. Fuel Moto is one company that does this.
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