Stock mufflers on duals?
#1
#2
Don't know what year bike you're talking about. From '07 the touring bikes have completely different design "mufflers" left to right. The left really isn't much of a muffler in the conventional sense. It's more like a vented resonating chamber. I doubt it would work well as just a muffler for one cylinder much less work well-enough-the-same as the other stock one when used in a "true dual" setup. Sorry, but I wouldn't do it and don't recommend it.
#4
glens is correct about the '07 and newer stock pipes. I ended up using the FullSac TD conversion kit and a pair of CVO slip-ons which are just a tad bit louder then stock, but both flow the same. Took care of the heat on my right leg, but my local tuner was not able to get better then about 70 hp and 81 ftlbs of torque out of them. However, the bike does seem to run really strong and smooth in the rpm range I ride in.
#6
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#8
The newest page on the entire Fullsac.com website dates from Sept. 2007, so I wouldn't go by them saying the products are only for up-to-2007 bikes. There's no reason in the world the conversion kit wouldn't work on an '08 as well.
This "dual" conversion requires a remapping of the EFI somehow (I know, their site says otherwise, but I disagree). See the comparative VE tables from the last SERT software here. I didn't think to do one for the ignition timing tables, or maybe they were the same, I forget and I don't have a Windows session running anywhere to check. The files were base maps included with the software. Since the software assigns the colors in the graphs based on highest and lowest values in the individual graph, I assigned common high and low values in all the 0-throttle corners so all the graph colors would correspond to the same values to make the comparison clearer/simpler.
The changes require a tuner capable of mapping front and rear cylinders separately.
This "dual" conversion requires a remapping of the EFI somehow (I know, their site says otherwise, but I disagree). See the comparative VE tables from the last SERT software here. I didn't think to do one for the ignition timing tables, or maybe they were the same, I forget and I don't have a Windows session running anywhere to check. The files were base maps included with the software. Since the software assigns the colors in the graphs based on highest and lowest values in the individual graph, I assigned common high and low values in all the 0-throttle corners so all the graph colors would correspond to the same values to make the comparison clearer/simpler.
The changes require a tuner capable of mapping front and rear cylinders separately.
#9
I am not sure I understand your question, but my Wife has V&H true duals and stock mufflers on her 07 RK. I put the True Duals on with SE mufflers but that combination was harsh to her ears so I put the OE muffers on. That combination sounds very nice - not as nice as the SE mufflers with stock pipes but still very nice. Provides a nice rapp on shifts too.
Eric
Eric