that's a stock exhaust all right. I count (1) catalytic converter and (2) muffler boxes. That's three flow restrictions and the two muffler boxes are pretty significant. Therefore not a straight free-flow pipe.
Free-flow pipe is what's on my car. 4" wide open pipe, no boxes, no cat, just a couple of mild bends, to the 4.5" cannon tip. Over 3000rpm, you can't talk to a passenger without significantly raising your voice. Stock = quiet, polite, and 100% legal....and chokes off about 30-50bhp from the stock engine.