Magnaflow 14x7 ovals, side entrance with center exit, basically straight through
I have the 3 inch size mounted at the rear bumper behind the rear end and mounted between the rear sub frames and the 1/4 panels. No rear leaf springs on my car, coil overs with ladder bars so the 3 inch pipes from the headers go under the rear end and then into the muffs
Pretty quite at part throttle cruise, not so quiet at WOT
I race tha car some
It picked up .04 (6.97 to 7.01) ET and .2 MPH in the 1/8 mile by removing the exhausr, not worth doing in my opinion