I installed the Banks headers on my 99 Class A MH and wasn't about to spend another $500 to replace a perfectly good exhaust pipe. The muffler had to go though! I purchased the Flowmaster 70 series to replace just muffler since this was the last culprit of restriction in the stock exhaust. I wanted a quiet but unrestricted muffler and I got exactly that. It has a deeper sound than the stock but it's still quiet. It fit perfectly and a great price as well. Tim
Excellent exaust without obnoxious noise
It sounds awesome and with out any bad whine at cruising speed. I have the Ram-Air filter kit also Not an exact fit but only need two pipes trimed. Needs longer tailpipe Where tip attaches. Tip will only come the edge of outside dual wheel, would like to come out to edge of tool boxes. Excellent product like all things made by Banks
A long awaited upgrade done right
I've had four diesel trucks and completed upgrades on all of them. I've experienced the systems that turn out so loud at highway speeds while towing you can't talk in the cab, these are Bull ****! My F550 had been waiting for the exhaust upgrade and I'm so glad I chose the Banks system. This is even quieter than the Midas Aero muffler I had in it, has opened up pipe size from stock and dropped EGT. I'm totally happy with my purchase.