This has probably been asked before, but getting ready to purchase exhaust for my 66 A code with GT trumpets which I want to keep. I believe its a pretty stock built 289 with standard manifolds which I will be keeping also. I like the sound (from Waldron's website) of the Arvinode exhaust but have heard some videos with the trumpets and it sounds a little raspy. What does the factory GT exhaust sound like compared to the Arvinode? I've never heard the factory GT exhaust that I know of. Is the factory exhaust louder or quieter with the resonators? I drive it often and want a throatier sound than the turbo mufflers that were on it.