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Discussion Starter #1
So I have a new to me 2010 RGC with the 96. Right now it has Screaming Eagle slip-ons, stock A/C, and Im pretty sure stock head pipe. The baffles are apparently in the slip ons as I can see them pretty good, hanging out a bit from the ends.

I want a louder exhaust, a nice looking A/C, and an engine that might run a bit cooler.

I honestly don't want a tuner or flasher or ECMPNFUJGBSJNSZ whatever thingy majiggy. I try to stay out of high tech electrical things :rolleyes:





However, I see I will need one of these contraptions. Ive done some searching, but still not seeing much on basic info on them. I do not wanna go to the dealer and tell them to piece together an exhaust, A/C, and tuner for me since im sure they will charge $9,999,999,999 to do so. I just want all three components to work together nicely, sound decent, and look decent.

Where do these things go on the bike? Are they hard to install and/or wire? Do any of these tuners work with all set ups? How do you adjust it? Are there automatically adjusting ones? Am I making this more complicated than it really is? Help?????

Thanks all.
 

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Well you will need a tuner if you do air intake and exhaust mods and future mods. The first thing I would check into is did the previous owner have a SERT (Screaming Eagle Race Tuner) installed at some time, a check at the HD dealer or with the previous owner may be able to tell you. If a SERT was used on your bike the previous owner should have had it in the bike when he sold/traded the bike.
Only 1 SERT can only be married to 1 ECM so if your bike had the SERT you will not be able to use another SERT.
The good news is most aftermarket tuners will piggy back to your ECM and they will work great. You should look into tuners that do more then just AFR adjustment look into tuners that can make timing adjustment as well.
Some tuners are like the SERT are only used when the bike is tuned and it is not permanently attached to the bike other tuners have to stay on the bike. Power Vision makes a good unit and is popular with many members on the forum.
There are a lot of threads on tuners so doing a search on the forum will give more info
 

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Discussion Starter #3
Searching still now.... Not really understanding, but searching. Hoping it all falls together in my mind haha.

So is this "SERT" what is considered a download?

Can it be erased? Will the dealer know for sure if its on there?
 

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In all honestly I can't tell you to much about the SERT. But for me I found the manufacturers web sight my best source for info. Def look at power vision and Pcv. Pull up deferent manufacturers web sites and compare them head to head. They will go into great detail with long list of what they are capable of and as long as you can follow directions and you enjoy tinkering on your bike doing all your bikes upgrades will be a fun project. I would recommend power vision. I don't personally have it on my bike YET but I helped my friend install it and set his bike up. It is very user friendly and performs well. Also gives you the option to leave it on bike or unplug and forget it so to speak. Def look at how much you want to spend and check out some of the info the manufacturers have to offer. Sorry for the long drawn out answer lol :D
 

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Searching still now.... Not really understanding, but searching. Hoping it all falls together in my mind haha.

So is this "SERT" what is considered a download?

Can it be erased? Will the dealer know for sure if its on there?
technically, the sert doesn't exist. that was an older product that hd had discontinued their relationship with. they then came out with their 'street tuner' (which is still epa compliant), and the 'super tuner' (the sert replacement).

but there are also several other products, the original mfg of the sert, now makes the tts. then there is the thundermax. and some others, not so well known.

before you make any decisions, study up on the capabilities of each unit, and what you are looking for. its a shame to buy a $500 tuner if all you want to do is flash it once for stage 1 and then forget about it. but, its also really the best way to go about it. sure there are other fixes that 'sorta' work, but if you spend the money once and it only hurts for a minute and you won't have to worry later on down the road if you change something. unless of course you are the type to insist on a dyno tune after each change.
 

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kyle31490,
The information my learned forum members have written here is mostly correct, but with all the acronyms and lack of detail, I can imagine you are still mostly confused.
With the modifications you are making to your motorcycle engine, you need to adjust the Electronic Control Module (ECM) by having the data inside of it adjusted. There are two methods. Harley-Davidson sells a couple devices that connect up you ECM to a computer to download a new data map that will provide the needed changes for the hardware you have installed (exhaust, high flow air cleaner or what have you). There is a less expensive device called the Screamin' Eagle Street Performance Tuner that you or the dealer can use to upload the latest ECM calibrations to your bike. The second device is the Screamin' Eagle Pro Super Tuner that allows you or anyone qualified to upload an ECM calibration to your bike but also fine tune all the parameters of your add-on parts.
There are other aftermarket devices as well that will 'write' directly to your ECM and are not permanently attached to your bike when the calibrations are completed (like the Harley tuners) and there are others that 'piggy back' on to your ECM to make changes to the data used by your engine and stay connected to your bike.

Don't discount what your Harley dealer can do for you and have them explain the options and costs to you. That is only fair by any business. Don't assume that they are out to cheat you or over sell you. Get your information first, be informed, then do your shopping, even with multiple dealers. You will be able to tell who has your best interests at heart.

You don't seem like the rider to tackle the tuning of your bike yourself, but are smart to ask questions here and seek guidance.

Good for you and good luck.
 

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Discussion Starter #7
That's the kinda answer I needed! Still learning but that's a good base. Thanks!

I really only want an exhaust and a/c haha.
 

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kyle31490, I see your from pa like myself. check out throttle city. chuck is one of the best engine builders and tuners out there. hes based right outside philly. But he has a mobile dyno and hits most of the pa events and some of our dealers open houses and partys. He will sell you a tuner install it and tune your bike on his dyno right in front of you. it ushally draws a crowd too.
 

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That's the kinda answer I needed! Still learning but that's a good base. Thanks!

I really only want an exhaust and a/c haha.
I am glad my explanation was helpful. My engine needed major work done this winter because of failure of the flywheels. My Road Glide is bone stock in the engine/transmission areas except for a free flowing air cleaner. Because the cams in my motor were showing signs of the cam lobes hard surfacing starting to wear adversely, we decided to upgrade them as well to SE-255 cams. That upgrade now requires the ECM to be re-tuned so I bought a Screamin' Eagle Pro Super Tuner (SEPST). I had the dealer that did the engine work download the closest base MAP available for my motor and 'flash' that MAP to my ECM with the SEPST. I will further fine tune this MAP to my bike when the weather is ride-able. I am relatively new to this process as well, but I have been doing a LOT of reading and research on the subject here on this forum as well as several others.
There are a lot of independent (Indys) tuners and businesses out there that can assist you as well, especially on the East Coast. Seek out recommendations from those here and contact those folks with your questions. Get their advice and counsel and take advantage of those that offer the same suggestions.
 

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Most of the tuners out there fall into 3 categories,you have the ones that piggyback onto the stock ECM,and change parameters by tricking the stock ecm,or altering it's outputs.The second type flashes a new tune into the stock ecm,like the SERT.the third type is a complete replacement for the stock ECM,with user-configurable parameters,like the Thundermax.

the flashers need to be set up on a dyno,the replacement ECM self-tune.

that's the way I understand it anyway.
 

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Discussion Starter #12
Most of the tuners out there fall into 3 categories,you have the ones that piggyback onto the stock ECM,and change parameters by tricking the stock ecm,or altering it's outputs.The second type flashes a new tune into the stock ecm,like the SERT.the third type is a complete replacement for the stock ECM,with user-configurable parameters,like the Thundermax.

the flashers need to be set up on a dyno,the replacement ECM self-tune.

that's the way I understand it anyway.

So it sounds as if the replacement ecm is the safest, easiest, and most user friendly type? Kinda a "plug n play" if you will. That is intriguing.
 

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So it sounds as if the replacement ecm is the safest, easiest, and most user friendly type? Kinda a "plug n play" if you will. That is intriguing.
Until you have a problem and find out that the Dealership will not touch the bike!
 

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Still check with the previous owner or the dealer if there was any kind of SERT used on the bike before you bought it. Any configuration of the HD tuners SERT, SEPRT etc are a tuner that is married to the ECM and it is not just a program it is the programer and it can not be ERASED. You can erase the programs that is put into the ECM using the SERT/SEPRT and install new programs. If the bike had a HD tuner before and you can get it and it will save you money. If the bike is stock and had no tuner and you are only doing intake and exhaust mods the stock ECM can be reflashed by the HD dealer and no tuner is needed. You can get away without a tuner and just a reflash until you do a cam upgrade.
 

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Discussion Starter #17
The previous owner is a member here, but I just looked and he hasn't been active since shortly after he sold the bike to me. I found the bike on this forum. I think I better try texting him to see... I had text him a couple times about things shortly after the sale so hope I haven't "worn out" my window if you know what I mean haha.
 

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the flashers need to be set up on a dyno,the replacement ECM self-tune.
not necessarily. sure, if you want every last drop out of your tune, put it on a dyno. but if you are just your typical, average rider, then a base map (ie canned map) that has been set up for your configuration is fine. plus, some of the flash tuners can 'auto tune' to make final adjustments to that canned map. i know the tts, and the powervision do.
 

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Discussion Starter #19
I talked with the previous owner. He did nothing g with the ecm, but the SE slip on was already on it when he got it so the first owner may have.... Can this impose a problem if it was already 'flashed'?
 

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I talked with the previous owner. He did nothing g with the ecm, but the SE slip on was already on it when he got it so the first owner may have.... Can this impose a problem if it was already 'flashed'?
No, it does not matter if the ECM was flashed before you got it. It is too bad if any of the previous owners bought a tuner for this bike and did not pass it along when the bike was sold because most any tuner that was 'married' (hooked up to the ECM) to the bike would only work on that one bike.

If you don't get a tuner from any of the previous owner of your bike, then you will have to buy one for yourself.
 
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