I'm currently riding a stock iron 883 and want to put on some slip on mufflers to get a little more sound out of the bike without breaking the bank as I would getting a whole new v&h exhaust system. My question is if I were to get the slip ons would I have to calibrate the ecm? I believe with slip ons its not necessary but I'm not sure. Any advice appreciated!!

 

probably not, but if you do it will run better and make more power

 

No you will not need to recalibrate the ecm.

 

Sweet that's what I thought thanx for reassuring

 

No. With just slip-ons you won't need a Stage 1 download. But, I think you'll find that a SE ac with K&N filter and the download will be in your future once you've invested in muffs; might as well finish the Stage 1 and enjoy the benefits.

Take a look at these:
http://www.americancustom.com/

 

I have a set of Cobra slip-ons and I love them.