i went to the local auto parts store and picked up a raptor muffler for 15 bucks, i know it sounds cheap and well....it was... but i'm totally happy with it, it just gave it a slightly deeper rumble that kinda filters out at higher rpms....i was just looking for something so that you could hear it when i downshift, because the intake i have sounds pretty mean when i floor it. but yeah, the raptor muffler sounds awesome, its not too much at all.....howver if you have to have something a little more well known, the dynomax super turbo is also what i would reccomend, its basically the same deal, sounds a little louder but filters out at higher rpms i had one on my old civic, it was the perfect balance
I'd recomend a 50 or 60 series flowmaster. They're not too loud and flow well. I have a 40 series flowmaster, and I love it! Probably a little louder then what you are looking for. Just remember, the higher the series #, the quieter the muffler. I think a 70 series is basicly the same as stock. I'd go with either a 50 or 60 series, if you want to keep it fairly quiet. Later.