Is yours out of warranty Nat? Mines no where near
But it really bugs me how it dont seem to run no where near as well as my 748s did. I thought it be a bit more lumpier low down etc but mine just dont seem right still.
On 748 I got 50mm cans added a JHP chip and it ran so well, now my S4r got can and de-cat pipe still dont run so well but i havent taken it to dealers yet for em to tweak but may go to luigis instead how much an hour do you know?
Seems to me getting rid of the chip on newer dukes makes em not so easily tuneable unless my dealer dont know what they doing