Bought an LS6 and am starting to crawl around under it. The exhaust system has a bunch of bends all in frnt of the fuel tank---it looks like two separate pipes coming from up front (Im too old to get under there too see. I dont see mufflers?? The pipes all snmaked by the tank are not smooth---they look like motorcyle mufflers or like someone took massive square jawed pliers and crimped them along the pipe lead to the chrome tips. Engine isnt running so Ive never heard the thing. Is that sounding stock?