I have the Magnaflow 12138 on my '06 330i 6MT. Kept the resonator and added Dimisa tips. I went with that particular muffler because its the same one thats part of their full catback system. I love the sound! I was like most, just wanted to hear my car at speed, when I accelerate and i wanted a more significant growl and a bit louder and that's exactly what I got. It's a nice sound. Not too deep, and not too raspy and certainly not a civic. To me it sounds like an inline 6 should sound. I've had many compliments on the sound, including my wife
Drone? None. Can I hear it slightly when I'm cruising? Sure. But that's how a sports car should be. When I'm on road trips it's barely there. But when I get on the gas it sounds great
Oh and it definitely gave the car better throttle response and torque through the whole range. Feels and pulls stronger
Last edited by reubendp; 05-15-2012 at 08:56 AM.