I used the stock resonator, and just behind the differential housing added a crossover and tapered the piping to 2.5 down from 2.75. The piping also had to be curved higher in the body in order to have the 24" Supertrapps be level. The sound in nice, but higher pitch than I would have liked, but they are adjustable for volume and power by adding or removing discs. I normally drive with 8 per side, but when drag racing have 20 per side. It does add power, and lots of sound volume. However, either way, there is still some interior resonance at around 2000 RPM.
Added 1/10/07: The volume in not deafening, even with 20 discs per side, but it is loud.
My idea would be if you do decide to install glasspacks, make sure you save your old exhaust, for a while anyway. Just incase you decide its to loud. I installed them on a chevelle I had once, and realize it was so loud you could not carry on a conversation in the car, let alone hear the radio. With the exhaust tips on a Vette much closer to the ear, since thats what you want, you may really enjoy them.
I'm really after these Cherry Bombs. But I'm getting myself real confused. At first, I was looking to get a nice exhaust system and just bolt it on (hopefully whatever I end up with is still "bolt on" and no modification). I'm looking for everything, headers to the tailpipes. I wanted to get a package deal. Then I saw/heard glasspacks and decided these are the way to go. So now how do I go about this? Do I get everything separately???
Do I buy headers...then buy pipes...then buy cats...then more pipes....then glasspacks...then tips..???
How will any of that ever fit together nicely?? Do you understand my concern? How can I configure and buy a system that includes glasspacks, with the least amount of fabrication/modification?