I`ve got a Feel`s cat back, sounds great but is a bit on the loud side. I too would choose a mugen twin loop, its much quieter down low. I progressively upgraded my intake, from a drop in filter for the airbox, to a 3a racing filter in the stock airbox with a cai pipe, then changed to a custom SRI with the 3a pod and 2 cai pipes. I finally opted to buy a gruppe m. Which by far had the biggest gain and noise from all the intakes i`ve tried.
If your just after sound, any aftermarket muffler will do. I found the SRI good for noise and moderate gains in power, but it does get quite hot sitting directly open to the headers.
Bookmarks