Yea they are single chambered flowmaster there also extremely small less than half the size of regular 40 series. Im debating putting some on, so im hoping there is more input! Can't find video anywhere
yeah i got 'em on my car. bbk longtubes, o/r bassani x pipe( modified of course) and 1 chambers w/ flowmaster tailpipes. and yes they sound ****in amazing. But i think I liked them the best before i put the tailpipes on and they were running straight outa the muffler w/o turndowns. VERY LOUD. and racy. i highly reccomend them.