Check to see if your system has any resonators on it.I had 40 flows and no resos,3"x 16" rolled tips on my 08 charger R/T, TONS of drone . Added Blastin bobs 2&1/2" glasspack resos and 4" DW tips.Now its wifeand long drive friendly,sounds good at idle/startup & BA at WOT.D

2015 Chrysler200s,2008 Charger R/T R&T,1999 Dakota R/T,1999 Viper ACR,1968 Charger R/T.