I ordered MBRP Duels! I have to get rid of my Stacks, I can't put up with the noise in the cab anymore. I have had them for about 2 years with an Areo turbine Muff in the system. Should I continue to use the Areo Turbine or use the Muff that comes with? If I think about it Does it become Duels righ at the Muff?

 

Order the kit with the muffler delete for duals. The muffler in the kit drones like crazy @ around 1800rpm.
Use your other muffler and install it as far forward as practical for clearance.
I did this and it moved the drone to 1200rpm. A non issue with an auto an still sounds great outside. Quiet inside.

 

well the center of my muffler is at the center of my T-case right now.

 

Have not heard the areo turbine muffler so cant be sure on the end result. My muffler is about 36inches long and 4" straight through. Bought it @ a big rig exhaust shop.
The muffler with the cool duals sounds like a Honda civic with a 5" tip and mine broke the back and front out.
MBRP has great customer service!!

 

I have the 4040XL areo turbine muffler, Well thanks for the info I will be using my old Muffler then. (with the stacks it does drone pretty good at 2,000 rpm) not sure if this will be the case when the pipes go out the back.

 

well got the exhaust yesterday and I will have to use the muffler that came with the kit. It starts duels on the muffler. Oh well I can keep my stack system complete Just in case I want to put it back on.