well, i've never heard any tanabe so i can't really help you there, all i've heard of them is that they are pretty deep at idle but when you get into them they are very loud. the stromung exhaust i have heard, it is on a 2.5RS so of course it will be a little different but its got a nice sound. deep and quiet at idle, never really gets too loud, although he has complained that it is going to rust...hope that helps