As shown in previous posts this car initially had aftermarket headers. We built a complete exhaust for them and actually HATED the sound.
To solve this we ripped them out in favor of modified OBD2 exhaust manifolds. It tamed it down a good bit and got rid of the rasp we were experiencing.
We also decided to use a different muffler and location given the change in manifold.
Start mocking up the exhaust
First center muffler and Y pipe
All mocked up
Simple turn down exit
OBD2 manifolds over headers
New Y pipe and center muffler
Up and over the subframe