Hi fellow members, I got some questions.
I just changed my OEM Muffler from my 09 RKC to old SE slip ons came from old touring CVO, I think the part no is 65957-00, I like the sound way better than my OEM muffler.
My question is how will I find out if i need to remap,download & how to find out if iam running LEAN on this change that i made.
Thanks& have a safe ride

 

Did you change anything besides the mufflers?

 

Unless you add a new free flow air cleaner you should be fine.Changed my stock 09' Street Glide mufflers for a set of SE mufflers and bike runs fine.A easy and quick way to check is look at the spark plugs.If plugs are realy wet and dark too rich plugs dry and light in color too lean.Check my plugs after 200 mile ride look fine.

 

...... if you just changed the mufflers, there's no real need to remap. Only as much air goes out as what goes in, so if the AC wasn't changed, the air intake hasn't changed.