what are my options for a 4" muffler? i need to go a little bigger than what ive got. i have a 3" in 3" out 80 series. i like the look of the dual exhaust but i need a 4". i was looking at the borla mufflers but they dont have a dual like the 80 series. i just wanted to see what you guys thought im sure somebody has been through this before. ideally it would be designed like the 80 series muffler 4" inlet 3" or 3 1/2" outlets. thanks for any help i appreciate it

 

This is what I used.
4" inlet and single 4" out
http://www.summitracing.com/parts/FLO-54033-12/

 

IF you want a 4" inlet, dual 3" outlet cross flow type muffler like the flow 80 series.....look up spintech mufflers. Its the same muffler used in the mufflex 4" kit. I dont recall the part number but they should still make it I believe

 

Look through Mufflex's catalog at the F-body section and see what they have. That's most of what is available.

4 inch pipes are LOUD. I would consider trying to use some diesel/SUV/Truck muffler. I've got a 3.5 pipe with a dynatech splitflow, sounds amazing but it's sooo loud. Im thinking about switching over to a Flowmaster 50 or a Hooker Aerochamber, but I dont think the aerochamber is made in 4 inch inlets. The 50 Im not sure about either.

Getting a dual-out crossflow setup is gonna be tough. I think spintech is the only option... it's the only one Im aware of.

 

sounds good ill take a look at the spintechs. how are those in comparison to the 80 series for sound?