All,
My 2005 Ultra has been dynoed with theSE Air Filter, SERT, & 64903-99 slipons.
I am thinking aboutswappingthe 64903-99 slipons outfor the Rush 2".
My question is, do I need to redyno if I make the change.
What would be the difference in the two?
What is the sound and performance comparisons?

Thanks, magnoliarunner

 

AIR FLOW - Less Restruction
Highly consider Re-Map or better yet FUEL MGNT SYSTEM that allows you to make changes without the dealer charges