I don't think it will sound much louder
I'm betting it will be not much different then it is now. It will seem louder to you because you will need more throttle at low RPM to get things moving due to the long tube headers lowering the torque until you get the RPM's up. Your car will positively scream at high RPM and then you will notice the big difference in sound.
Your neighbors probably really love your Magnaflow Comps.
2012-candy red- V-6 MCA, Automatic Trans. CFM Valve cover breather. MMD blackTail light trim.Magnaflow axle back street mufflers, JLT oil catch can.MMD hood struts.
Airaid Cold Air intake. red caliper covers, 3.7L performance engine cover, Flat black hood spears.Boss 302 strut brace, CDC rear panel, Trunk Cargo net,--Dash carpet cover,
Viser stickers to cover ugly yellow warning crap,Aluminum driveshafft and Swarr Bar.