Alright everyone, I've got a 98 civic lx, when i bought it, there was no muffler, so now i'm looking. Here's the thing, I would like the HP increase, but I don't want to sound like I'm farting when I'm going down the road. Basicaly I don't want much noise at all, unless I'm realy getting on it. So I've been looking at the flowmaster american thunder setup with the 40 muffler, it's cheap, but I don't know about he sound. So let me know if you have it, and how it sounds, or any other opinions that you have. Cat-backs would be nice, bt i could do just a muffler, and also, lets keep the price down. Thanks.