So I am getting ready to buy a catback system and want a nice deep rumble but not the honda civic high end rumble, lol. I heard the HKS Ti high flow is a awesome one , I also heard go with stillen for more power but more stock sound. I want a deeper rich sound, also heard fujitsubo and fast intentions are nice and deep? someone that has baught a few of these, please give me your opinion!

 

here we go again lol

my personal opinion would be between HKS and Fast Intentions. I have heard them both in person and they sound great. Fast Intentions isnt quite as loud as the HKS but they are both relatively deep sounding. Id suggest trying to find someone with each and listen first hand. Best of luck to you

 

Spend a few hours in the Intake/Exhaust section(where this post has now been moved). There are plenty of soundclips and reviews.