if you have a 4banger sedan, unless you are intending on going forced induction, don't do duals...it's just added weight and doesn't help much.
I, personally, have a v6 accord sedan and i run a Greddy Evo single exhaust (i didn't have enough $$$ for the dual option and it's :eh. Anyway, all i hear is a low grumble at around 1-3000 rpm. AFter about 3, i hear NOTHING...it goes silent. I was h: and at the same time...if you are going freeway and have the stereo on,you can barely even notice it. :thumbsup: to Greddy for making an excellent exhaust. Only problem is it's a big coffee can but i don't care...:fawk: to you who think i'm a ricer...