I'm pretty sure the Screaming Eagle Slip-ons are a re-badged Supertrapp.
My Supertrapp disc's and cap are 4 inch, they do a system using 5 inch ones as well.
You can ask the dealer :)
Enjoy the new ride :)
Cheers
Sorry mate, Supertrapp are an exhaust system.
See this link
You can run different numbers of discs to change (and tune) the back pressure in the exhaust, and run an open or closed cap.
I just changed from a closed to an open cap and am retuning the EFI now as it was running a little lean after the change, I guess she can breath now, and it sounds like a Harley again.
Sorry for the typo and all the aftermath :(
Hope you sort out a cap, some on fleabay are nearly affordable.
Some are just fancy alloy ones, but the one's I would look out for are the adjustable ones for tune ability.
Good Luck
Your welcome.
As I said I just changed over to the plain open cap now, and currently have 20 discs installed, and hopefully will do a highway tuning run tomorrow.
It is a LOT louder that before, I might see how it goes, and take out 5 discs and see if it feels better or worse after I get the EFI map sorted.
No it doesn't look like a tuneable style Supertrapp system Steelo.
If you go onto the Supertrapp site all the questions about the discs will be answered, but in short, no they are separate to the end cap Matho, you can add or subtract them to change the backpressure of the exhaust.
Yes I do my own tuning, I would advise you not to get the Screaming Eagle Race tuner (SERT for short) (and DEFINATLY not the Street tuner !!!))
There are much better ones available, that do a better "Smart Tune" than the SERT, and also have more functions.
I have the SERT and while it does allow for some tuning of the VE and Fuel tables, as well as a few more things, it is a bit limited, especially coupled with the narrow band O2 sensors fitted as stock.
If the bike didn't come with it I would have bought a Power Vision.
Once you plug these things into the bike, they "Marry" to the ECU and are then locked to that bike.
I'm not right up on the Power Vision, but do know it has an LCD display you can mount and dismount, and is a lot more user friendly (like you don't have to be back at the computer to do the basic auto tuning if I understand correctly) from what I have read about it compared to the SERT.
The SERT is hung of the bike during recording runs (like the Power Vision) but has no display.
You set it into data gathering mode via a computer and long printer/USB cable and the SERT to bike Harley cable and plug it back in to the computer to download the data, do it wrong and you lose all those tuning runs you just did !
I do the download before shutting the bike down, with a big arse fan blowing onto the engine, only takes a minute or so.
The SERT manual doesn't really tell you shit about actually tuning the bike as such (like what a good fuel map looks like etc), just how to do it.
Hope that helps a little, I'm still learning about it all myself mate :)
Used to multiple carbs and points, old school :)