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[Stgeg]

Hi All,
I will receive my new 1st Street glide CVO  2015  next week and I am planning to replace my stock pips , I will go for V&H dresser duals and HO slip ons . The questions should I change the stock filter ? My understanding is that the CVOs comes with high air flow filter already . The second question is  what if I didn't put any fuel management system like SERT or TTS ..etc , what will happened to the performance with the new pips ? I really appreciate your valuable experience
Many thanks
Amr

[DesertHOG]

Hi All,
I will receive my new 1st Street glide CVO  2015  next week and I am planning to replace my stock pips , I will go for V&H dresser duals and HO slip ons . The questions should I change the stock filter ? My understanding is that the CVOs comes with high air flow filter already . The second question is  what if I didn't put any fuel management system like SERT or TTS ..etc , what will happened to the performance with the new pips ? I really appreciate your valuable experience
Many thanks
Amr

use the cvo air filter, its high performance. With regard to the tuner, a SERT or TTS. Use whichever your technician is comfortable tuning with for performance improvements. When you modify your exhaust with the V&H true duals you will need a performance tuning update using one of those to tuners.

[Stgeg]

use the cvo air filter, its high performance. With regard to the tuner, a SERT or TTS. Use whichever your technician is comfortable tuning with for performance improvements. When you modify your exhaust with the V&H true duals you will need a performance tuning update using one of those to tuners.

Many thanks

[hawgzilla]

To answer your question, you don't HAVE to do anything with a muffler change but you would benefit greatly with a proper tune.

Be aware that there is an issue using TTS on a few of the 2014 and 2015 touring model bikes.  There seems to be an electrical noise issue that prevents monitoring data when the engine is running.  There is not a fix for this at the present time.  This only affects a small number of bikes, but if yours is one of them, it's unacceptable.

[Doc 1]

To answer your question, you don't HAVE to do anything with a muffler change but you would benefit greatly with a proper tune.

Be aware that there is an issue using TTS on a few of the 2014 and 2015 touring model bikes.  There seems to be an electrical noise issue that prevents monitoring data when the engine is running.  There is not a fix for this at the present time.  This only affects a small number of bikes, but if yours is one of them, it's unacceptable.

That's news to me...I've tuned 20 or 30 14's and 15's with no issues at all from the TTS.....now there were issues in the ECM when recording with ANY tuner but Harley fixed that last year with. 

[jpswino]

I've been really spending a bunch of time with this subject matter for over two months now. I've read about all the options, spoken to people, researched this forum and listened to countless videos on Youtube. I think for best performance, deep rich sound, a good quality "bark" with some volume when you crack the throttle, smooth and broad band of best possible power, and a gentle "quiet-ness" at highway speed, then the Fullsac rig is the one to go with accompanied by a TTS Mastertune. I just haven't decided if I am to buy the DX pipe or just go with their modified stock pipe. I have already purchased the Fullsac 2.0 cores and the baffle material sleeves for my stock CVO cans. Fullsac has already done all the research and tuning for the 110 motor with the TTS so I get to SAVE MONEY while getting to skip the investment of a dyno tune. Basically the dyno tune has already been done. Someday down the road I will probably do a pro tune if I want to extract that last 1-3 hp/tq from it as we all know each and every motor is "slightly" different. But basically the numbers speak for themselves. A Fullsac pipe, Fullsac can inserts and TTS will cost you the least amount while still providing MAXIMUM power. In addition, I get that low deep rumble at idle, "here I come" bark when I get on it, and nice low tone while cruising so I can hear my tunes or just enjoy simple peace at cruising speeds without paying for it in my ears when I shut it down. Well done Steve, I'm sold. In my opinion, the next item that should be on the Fullsac agenda is coming out with kickass chrome shields so if there is a guy that wants the aftermarket look of the V&H or Rinehart Slim Lines then that too can be had from Fullsac. At this point, that look is all I will be missing and to tell you the truth, the stock CVO look isn't bad. It just isn't as cosmetically cool as a few other out there like the ones I mentioned.
The way I see it, you just can't consider one tuner over another. If you are already invested in pipes/cans then yeah, maybe it will be different for you. But if you are going from stock, I can't see a better mix of parts making a better combination on a "touring bike" that is going to be ridden. And if you want it loud, Fullsac does that as well. 

[hawgzilla]

I too have tuned a large number of the 2014-15 bikes and just ran into this issue.  Steve at TTS told me it's a known issue.  I tried moving wires away from the bike per his suggestions but nothing worked.  Bike is untuneable with this situation.  I hope Steve can come up with a fix as our dealership does not want to sell anymore TTS units knowing this situation can occur.  I am a huge fan of TTS and I hope the fix comes soon!

[grc]

I too have tuned a large number of the 2014-15 bikes and just ran into this issue.  Steve at TTS told me it's a known issue.  I tried moving wires away from the bike per his suggestions but nothing worked.  Bike is untuneable with this situation.  I hope Steve can come up with a fix as our dealership does not want to sell anymore TTS units knowing this situation can occur.  I am a huge fan of TTS and I hope the fix comes soon!

I think I'd like to know if the same VCI were used on another '14-'15 bike, would you have the same problem or would it work just fine on that second bike.  In other words, is the problem the TTS VCI, or is it a Harley problem?  Has anyone tried that, using a two bike license?

Jerry

[hawgzilla]

The problem bike is the only one showing the issue.  Same VCI would collect data on other bikes.  Different VCI showed same problem on the bike in question.  Data could be collected on the digital tech.  Steve says his personal bike has the same issue.

[INDEPENDENT_1]

I too have tuned a large number of the 2014-15 bikes and just ran into this issue.  Steve at TTS told me it's a known issue.  I tried moving wires away from the bike per his suggestions but nothing worked.  Bike is untuneable with this situation.  I hope Steve can come up with a fix as our dealership does not want to sell anymore TTS units knowing this situation can occur.  I am a huge fan of TTS and I hope the fix comes soon!

I don't want to throw fuel on the fire but have you tried using the SE cable between the dongle and the vehicle? I recently tuned a 2014 shower head and realized the 6 pin cable I had gotten for the softails etc. some time back was not going to work. I ran to the dealership and grabbed a cable from them in a desperate situation and the tune went as any other without issues. I don't recall exactly what the issue was so disregard this if it was something insignificant or a forgetful mind on my behalf. Just trying to help...

[hawgzilla]

First off, sorry to the OP for the thread drift!!
I did indeed try a SE cable/ the proper TTS cable as well as a USB cable with the ferrite bead attached.  Please keep any and all ideas coming!

[Steve Cole]

This is a HD issue and we are trying to see if we can find a fix for it. Our fix will not really be a fix but a way to cover up the HD issue. We believe it to be an EMI issue. As stated above it only occurs on a certain bike. Use all the same cables, VCI on another bike and it works fine. So that narrows it down to a bike/HD issue. For the record, we have seen the same issue with the SESPT and PV on an effected bike. Do not own a DT so we could not check that. It only happens on a running bike, so that helps narrow it down some, if the bike is not running everything works perfect. We see this issue only come up once in a great while and mainly on 2014 - 2015 Touring models. If I had to guess I would say 1 in 5000. Yes, my personal bike is one of the ones that do it and it is currently in the dealership for a failed charging system which I believe is where the issue comes from. Now that the charging system has completely failed on mine they are replacing things under warranty. Once they get done fixing the bike and I get it back I will see if the issue is gone or not. If it fixes it that will pretty much proves what we already think, but that's not going to solve much for a person stuck with the bad bike and this is why we are looking into it.

[INDEPENDENT_1]

Hmmm, my apologies for getting off topic as well.

To the OP, in my opinion every bike should be tuned as quickly as possible... by a competent dyno operator of course. In my experience, they run much better even in stock form after getting a good tune installed and Id also recommend removing the catalytic converter if you have one before tuning. The stock headers with the cat removed perform pretty well but most feel it's more trouble than it's worth over replacing them with a good header that has no cat.

[hrdtail78]

The TTS is a better tuning device.  I agree that picking the one the tuner is more comfortable with is probably the best option but in my opinion.  I can't see having the knowledge to find myself around one program without being able to do the same with the other.  The SE tuner just leaves me wanting more tables.   I am also going to throw out there that either is going to give you more usable HP for the street. It's not between tuned or not tuned or which tuning device. It's about finding a tuner that knows what he is doing.  This will give you best running bike in all throttle position and rpm's.   

I have had good luck luck with the exhaust package, but it isn't a great one to leave everything in closed loop and let it rip out the door.  It is pretty free flowing and the problems with EGR needs to be addressed.  Please don't take this as it can't be tuned or its a problem.  Just me stating that it is one that needs to be tuned using more than just stock sensors. Things need to be mapped and compared.

And to be clear.  I am in the school of thought every bike can benefit from a tune, and of the money spent on these things.  Just plan on paying for a tune. It the comparison between good deals in this industry.  Tunes are cheap. 

[gmeikle]

Relatively late chime in from Perth Western Australia

To answer the post title " SERT (SEPST!) vs TTS

( I have posted this on other threads and on other forums )

Here in Perth WA the HD dealers have become very adept at "upselling" their own brand Supertuner

The local Indy shops push the Power Vision as their tuner of first choice

I do the tuning work for quite a few mate's bikes , and use both the SEPST and the TTS systems regularly , with a wee team of laptops I have gathered over the years.

To cut a looooong story short , I prefer working with the TTS system , maybe just because i'm more used to it. I have no problems using the SEPST system and do so regularly.

When it comes to "Aftersales support" there is only one tuner system to consider.

That's TTS , and Steve Cole is the man , you can email him and get a very timely reply with top quality assistance.

As far as I am aware , there is no "Helpline" for the Harley Supertuner SEPST

Ask your Harley dealer by all means , but often I know more than them !