Sidepipe noise

Hello
I recently fired up my car and tried it with open headers to mufflers on
Although I am half deaf from working in an automotive stamping plant for 30 years, the noise is quite deafening inside the car even at idle
I aquired some spiral insert baffles for the exhaust that I can use inline with the DNA mufflers(have not tried them yet) I still will need to get the car quieter if possible
Has anyone been successful in getting the car considerably quieter inside with sidepipes and if so what would be reccomended as the best for sound insulation?
At present you would have to yell for the passenger to hear you, although it will be quieter once the inserts are in place. It seems to be louder in the car than out
thanks for your time
Tom

 

truck bed liner and dynamat of the floors

 

Resonate noise is hell......put some internal baffles in the sidepipes...then do what 8's andA's suggested....put some sound deadener matt on you floorboards after rolling on some rollon bedliner material should do the trick....if not...buy a better stereo..........

 

If its possible put an x or an H pipe in, which would help with the low tones

 

I like a H pipe. It will kill some of the vibrato, (highway drill in the brain sound)

Is vibrato a word, I dont know, you know what I mean.