I'm thinking that the next mod I want to do for my car is a custom exhaust and to be honest I don't really know anything about the whole exhaust thing. I do know that I would like to have the pipes and all replaced. But I'm not sure of what size. I also don't know what kind of muffler would best bring out the sound of the motor. Also a resonator what would be the best option for replacing that? Thanks in advance.