I need meaner sound!
What I did was cut the tail pipes off right at the muffler and canned them. My car sounds much better. I haven't had a chance to get some turn downs installed yet but the mufflers stop right before the rear axle. It has a deep "big block" sound to it now compared to before. I also have long tube Headman headers and Flow 40s with out H or X pipe installed yet. I would give that a shot first if I was you. I personally never cared to much about the glass pack sound and they tend to pop and crack when you let off the gas. I like deep throaty sound without the poping noise. You can also have some cut outs installed before the mufflers right at the header flangs which you would have straight exhaust and with the push of a switch you could have the normal exhaust again. I have one on my truck and it is killer. I got it from Quicktime Performance.