I have a 91 dakota v8 magnum, I went to a exhust shop last week and had a flowmaster installed, i dont know if it is a 40-50 series they didnt tell me, just said it will be loud. The truck is very quiet but actually sounds better in Idle than when i step on the gas. In idle it sounds more so a gargle than a nice deep tone. Does flowmaster take a good amount of time to break in and give that deep tone or did i just get ripped off. I also had a brand new magnaflow cat put on few months back.

 

flowmasters that I've heard don't sound like the old cherrybombs or walker blueswingers I used to run .The low compression engines today cause some sound differences also aluminum engine heads change the tone . The main thing is to get better flow and performance without getting a TICKET.

 

i have flowmaster 40's on my 93 5.2 & no cat, it sounds good andis loud! im guessing all mufflers take time to break in. the only thing i dont like is they pop and clack alot.