your input about my exhaust

my valiant has the 225 /6 and i am going to replace the whole exhaust front to rear..i want to run 2 1/4" ID all the way and would like to use some type of performance muffler like flowmaster..also,is there any type of exhaust tips i could benefit from using??just would like to hear your guys opinions and suggestions...btw i am keeping it single..thank you n advance for your thoughts.........