i put on a racing medallion catback on my cousin's rsx base model, its barely noticeable. i was expecting it to be a little louder, from posts that ive read they stated its really really loud, in comparison with the racing medallion and apexi n1 they said the tanabe is louder. i have the n1 on my 240 and its great but why isnt the tanabe that loud?? barely noticeable. it has a nice smooth sound but my cousin wanst satisfied with it, i on the other hand like it but what else is he going to need to get his "louder" exhaust?