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Old May 16, 2008 | 09:46 PM
  #1  
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Default True Dual

If I install RH True Duals is it mandatory that I calibrate the EFI on my 08 FLHTC? Or will it run just fine without tuning?Thanks
 
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Old May 16, 2008 | 11:08 PM
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Default RE: True Dual

Have you got the stock air cleaner and pipes on your bike.
 
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Old May 16, 2008 | 11:22 PM
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Default RE: True Dual

yes i do have the stock air cleaner and pipes
 
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Old May 16, 2008 | 11:25 PM
  #4  
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Default RE: True Dual

i installed the Fullsac conversion with Pythons and no fuel mgmt. stock air cleaner/box with no problems at all
 
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Old May 17, 2008 | 12:01 AM
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Default RE: True Dual

You should be OK with just the dual headers and supertrapp mufflers ?. If you change your air cleaner you will need to add a SERT
 
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Old May 18, 2008 | 08:40 AM
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Default RE: True Dual

BTT..

So, no fuel mgmt needed if replacing headers? What if you do aftermarket headers & aftermarket slip-ons? What if you do a 2 into 1?

All of this under the assumption of a factory AC...


MM
 
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Old May 18, 2008 | 09:13 AM
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Default RE: True Dual

I would go to a Power Comander III, and a different air intake system, you'll notice improved performance and no puttering or decompression. It will also allow your bike to run a little cooler.

Thats my .02 worth
 
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Old May 18, 2008 | 05:57 PM
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Default RE: True Dual

Tried true duals on my 03 FLHTI one day. Lost low end torque and 5mpg. Switched back to stock the next day. True dual's were advertised no re-map required. Also had stock air cleaner and pipes on bike. Sent back to seller, he refunded part of the costs. With the fuel the way it is glad stock bike gets 45-50mpg. Did install Andrew's 12G cams. Now this set-up does not need a re-map cause lift and duration very close to stock. The true duals did look niece but did not want to go to extra expense of tuner. Just my thoughts.
 
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Old May 18, 2008 | 08:58 PM
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Default RE: True Dual

intake is the choke point for flow changing pipes with out intake will likely hurt perfomance and milage duals,changing intake must retune also duals are designed for wot preformance and wont do much for low end torque wich is were most riding is done so... if u want perfomance do wth 2into1 if u want looks go duals if its only sound do slip ons
 
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Old May 19, 2008 | 06:28 PM
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Default RE: True Dual

There is good reason why HD do not have true duals from the factory
 
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