I took my new Magnaflow straight through mufflers and stuck them on the ends of the tailpipes and cranked the car up... It has no other mufflers... I hope it is quieter under than it was stuck on the ends.... It was smoother but still a little droning... What do y'all think... will it be quieter installed under the car with pipes after ? I alos revved it up and got this nasty glass pack rappping sound I hope to god it does not do that !!