on my previous post I was complainig about the annoying drone that my new magnaflow catback exhaust was emitting. I got a magnaflow 14" by 5" round muffler installed between the catalytic converter and the 18" muffler which came with the original kit...PERFECT... still have the nice rumble although not as loud...the drone has all but disappeared...very tolerable and not annoying...this setup is perfect for me...glad I spent the xtra $100.00