If the stock mufflers are the same internally you might be a little rich,if there like my 07 & 09 mufflers where 80% of the flow goes thru the right muffler,(left muffler almost closed off) I would think the flow be off some.

 

They told me after the remap I could run any pipes I wanted with no issues, not correct?

Dont mean to thread jack...

 

I had an 03 with 95kit and race tuner changed it back to stock a couple of times no issues. It will feel slower, because it will be so quite, not sure it really made much of a difference. It will not hurt anything anyway will just run a liittle richer.

 

Thanks for all the replies.Put the stock mufflers back on this morning and took a short ride.it is a whole lot quieter and seems to be running fine,seems to be idiling the same as before and pulls the same.Oil temps. seem the same.