Ok i recently found out my muffler has a hole in it and needs to be replaced before my inspection. I plan on going ahead and up grading the muffler with a borla one. I have no idea what style. i want it to have a nice growl but no rasp or anything. Loud enough to be heard but not to loud but flow alot. Since i'm putting a new mufleri want new piping,. I'm gonna have the piping replaced from the flex pipe back taking out the resonator. i know 2 1/2 mandrel bent piping is the best but no one in my area can mandrel bend so i have to go with crush bent. So what size of crush bent piping should i use. All help is appreciated. thanks