yeah ,my dealer is saying it needs a computer upgrade ,,my feeling is i bought it in dec 07 ,it was assembled in nov. and it's a 08 ,,,,,should'nt it be updated??? /// from looking around on here what the h*** is a stock muffler and how is this making my 08 ram sputter?? my 04 ram was agem NO PROBLEMS TILL THE DAY IT WAS STOLEN ...