3" exhaust question

I have a 4 foot long 3" exhaust pipe and a 3" dynomax bullet muffler I bought from summit. I still need to get the dp. I'm thinking of dumping it in front the rear end on the passenger side. Do you think this will sound alright or should I route it all the way back? 87 TC engine in a 89 stang w/ t3 turbo @ 17 psi. Right now I have some crappy 1-3/4 inch or what ever was stock on this 4 banger. I'm sure this should open it up some.
 
Dumping it before the rear without a cat doesn't make it loud but instead makes it annoying, it resonates so bad you get a headache after a few hours of driving. I have 3" downpipe to a 3" magnaflow to a 3" mandrel bent tailpipe out the back, sounds great and doesn't resonate.
 
I run stock down pipe to 3" to 3" dynomax ultraflow changed to 2 1/2" pipe for a 5.0 over the rearend sounds good future plans 3" directly off turbo. Hope this helps