Oh, I haven't bought a muffler yet, but I'm looking for a carbon fibre muffler other than HKS because I'm not too fond of them, so is there any others?
Well unless you plan on spending 800+ on the MUFFLER alone, you won't need the HKS Carbon Ti. Just go with anything really, muffler is almost purely cosmetic anyway.
muffler is cosmetic, and the sound.
Bigger inlet piping and bigger muffler is generally louder...
My friend just installed a magnaflow canister muffler, 2.25 in and out, and it sounds really good, nice and low on his 91 rx7 n/a.
if you plan to go 3" piping to a 2.5" inlet on the muffler.....don't. think about it, it ruins the idea of getting 3" piping. you'll have a bottle neck at the inlet to the muffler. and if you really want a cf muffler...ac revolution makes some. my friend has one on his 200 sx ser and it sounds surprisingly good. but come on, hks has that flame tip....mmmmm
for our car, they're supposed to sound pretty good. kinda loud from what i understand. i'm a little skittish to get one cause they sound like s*** on other cars.....but then again that's hondas with pos mods. turbo cars rarely sound buzzy. i'm just not fond of the loudness factor. i'd rather have something a little quieter. check out carreview.com. people post their own reviews of all sorts of parts. it'll give you a rough idea of what to expect.