Mufflers For a 98 RK

[crazy joe]

I have some stock 2009 or 2010 mufflers for
ether a RK or a EG would like to know if they
would work for a 98 RK. I also have some older
SE mufflers, part number 027-7117 Would these mufflers
work good on the 09 RK. I have the newer version on
the SE's and can't seem to get the same power out of the
bike that I had with the stock ones even after trying to re jet
(if I'm using the Right ones)

[JohnS_Rosamond]

It may be that the later model stock mufflers that you have are equipped with catalysts in them, and may be restrictive enough to dampen power.  If you're running a carb, you might actually damage the cats by running a little to rich for the cats.  I would suggest trying the S.E. slip ons that you say you have on hand.

[crazy joe]

That's what I have on it now the newer ones have not
tried the older ones yet. Have not tried the newer
stock ones. I think my problem is I don't have the right
jet combo for my Altitude which is 5200 ft.