Needing new exaust

Any experience with straight pipes with muffler insert. I am looking for less noise,
Maybe a resonator then pipes or mufflers

Cab has been lined with dyna mat and closed cell foam.

I know a resonator will help with the drone at some rpm’s.

379 Pete with 12.7 Detroit

 

I assume pipes behind the doors? Is it too loud now? Do you have mufflers, and are the newer?

 

When i had all pete's with straight pipes i used a resonator under the cab before the Y. One driver we put two, one after the Y each side.

 

I’ve got 7” pipes with the internal mufflers on my w9, I like them

 

I got a resonator in front of the Y pipe and run 6" straights.. I like it its not loud.. resonators are not expensive either

 

I’m thinking a resonator before the y , then 7 inch with mufflers in the spools.

 

I would put the spools in first, then decide if you want the resonator later.