I had Flowmasters in the Charger from 2001 until last year. I liked the sound. No drone and at idle the car sounded chunky and aggressive. I did NOT like driving along side concrete walls, sound walls, big rigs or anything that reflected the sound back my way. The radio was hard to hear whether the windows were up or down. I was making some changes last year so I replaced the 2 1/2" pipes and FM mufflers for a mandrel 3" section with an X pipe and Dynomax Ultra Flos. The sound is much more tame at all speeds but still great. It is just different. Eric in the CCM club has magnaflow mufflers on his 70 Cuda. I think his car sounds more refined but less aggressive than mine. It is a matter of personal taste. I'm switching to a milder cam soon so I hope the mufflers still deliver some bite. I'd hate to sound like a stock late model Charger!