Just bought my first Harley (03 Ultra Classic) and want to gain a bit of rumble. Is there a slip on out there that doesn't require additional fuel mgmt. adds? Already has a stage one air cleaner on it!

 

Stage 1 consists of...

Free breathing air cleaner.
Free breathing exhaust.
Rejetted carburetor or remapped EFI.
Upgraded ignition (if require*).

If you change the exhaust, it seems like it needs a tuner...but I'm no expert. Maybe not with a slip on but it does when whole exhaust is replaced.

 

If you just have slip-ons, there's no need for a re-map, however, if you have/change your heavy breather/air intake, you'll need a map.

Odd the bike has a heavy breather, but no aftermarket exhaust.

 

It was a crash repair and the pipes were replaced with stock pipes post crash I think. Bringing it to my Harley guy tomorrow to find out EXACTLY what I have!

 

You need "fuel management", even with a stock bike - more so with a low restriction air cleaner. FuelMoto is a forum sponsor.
https://www.fuelmotousa.com/p-29474-...ley-store.html

 

If you didn't pay much for the bike and you aren't too concerned about how it runs or its life expectancy, then you can simply pass on any "fuel management" device and ride the thing.

Now if that doesn't apply to you, get the bike properly mapped. And by proper I mean a custom-designed map for YOUR bike...not some generic fit's-every-bike-out-there canned download or add-on device that just adds fuel even when it doesn't need it.

Lots of ways to waste money when it comes to tuning...do yourself a favor and learn what tuning is and isn't.

 

When my '04 Road King was stock except for a SE air cleaner, it ran way too lean with the dealer installed Stage 1 flash. A PC5 w/canned map solved that problem and the bike ran great. I didn't get a dyno tune until after I did a 95" build w/cams.

 

Thanks people, I am not looking to be cheap or ruin the bike. I want to do what's right without "wasting" money not needed. I'm not interested in high performance, just a little rumble as in my original post My local HD shop tries to "upgrade" way too much every time I go in so I've stopped going there. Just trying to figure out what's best is all!