Your setup shouldn't be too loud... cause you have resonator..
I have straight pipe with high flow cat and Veilside.. and didn't has much problem with the cop..
There was one time I got pull over for speeding and gave me a ticket for loud exhaust...
So all I had to do is fix it and sign off the ticket by another cop...
BUT I never changed it... I just went up to the cop and he said just fire it up.. so I start up the car and let it idle...
He said OK.. and signed it off...
I don't have resonator so it's pretty loud, but it's pretty deep and not so loud under 4K..
So you should be fine as long as you have stock resonator...
If you want your exhaust to be more quieter... goto muffler shop and add another resonator.. you wouldn't loose much air flow... I'm sure it's not even a noticealbe...