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[ultrarider123]

First off, I'm very happy with the performance and sound on my '15 SERGU.  I've considered removing the plugs as I did on my SE muffler on the '12 to give it a bit more umph sound wise.  However, I'm over the loud Harley as I'm getting older and the stock db level is just fine.  I did remove the inner extension pipe piece as it was already rusting in both pipes....plus I think the stock SE mufflers look better without the extensions.

ANYWAY, I'm thinking that any tune would be a good thing no matter stock header/pipes or decatted or Fulsac header and Fulsac baffles or aftermarket mufflers.  These things are so lean from the factory that a good tune should help the motor run better in any configuration other than the stock ECM settings?

I'm pondering on this for future consideration down the road after the 2 year factory runs out so it's not something I have to do tomorrow.  A tune alone isn't something that is discussed without also including exhaust and/or AC modifications.  It may not even be something that's worth pursuing but it was on my mind and I thought I would throw it out there to discuss.

....so here we go.....

[hd-dude]

Look at it this way... the stock tuned is a "canned" map. After taking a "canned" map and doing a full tune on the bike with a good flash tuning device (TTS) by a competent tuner the bike will run better, have better throttle response, and typically pick up some horsepower and torque.

[GregKhougaz]

Howard,

I've installed two Fullsac stage 1 kits for myself and a friend.  Even the map sent from Steve rendered much better (quicker)  throttle response on both bikes. I don't think that was from the exhaust.  I agree with you about the sound.  The 1.75" baffles are only slightly louder than stock. 

GK

[ultrarider123]

That's sorta what I was thinking, Greg.  The header and muffler mods help but the tune really does all the "work" so to speak.  Good information....

[Ridgerunr]

Money well spent getting a complete tune. Less heat also. 

[FLSTFI Dave]

Money well spent getting a complete tune. Less heat also. 

I fully agree, a good tune makes the bike run cooler, smoother, a bit more power, and they can tune out the dead band the the throttle by wire. 

[MadCVORG]

I've managed to log some miles on my bike, measuring fuel mileage along the way. Still pulling high-40's mpg with my tune.

[GMR-PERFORMANCE]

Just tuned a trike with VH head pipe some mufflers ( ) and rest stock .. It was night and day from the canned map vs the tuned map.. Large % of changes in EGR, as well VE under light throttle was in fact rich .. so better MPG, cleaner throttle response, .. 

[ultrarider123]

Just tuned a trike with VH head pipe some mufflers ( ) and rest stock .. It was night and day from the canned map vs the tuned map.. Large % of changes in EGR, as well VE under light throttle was in fact rich .. so better MPG, cleaner throttle response, .. 

More good info, thanks Steve. 

[Classic Beast]

One thing I noticed after installing the Fullsac dx pipe and 2" baffles as it seemed very loud but when I changed the TTS map out with one I got from Steve at fullsac it ran way better and gets quieter and smoother the closer my tune gets.