Can you give some more feedback
Is there a drone? Compared to riding in a buddy's with TRD duals, I dont have any drone. Every once in awhile pulling something etc, maybe hear it slightly. Other than that its none, and I think its perfect.
How much change in sound, volume at idle? Louder and more rumble, not an annoying loud, definately sounds like a V8, I get alot of compliments
What about when you punch it? Sounds like John Force running the 1/4 ;-).. Sounds good, throaty
How would you describe the overall change in volume? Perfect, no complaints, again comparing to TRD, its quieter but very noticable sound.
Would you say it sounds tight? Some of the guys with v6's didn't seem to like the sound but I don't fine many with the v8 describing the effect. tighter at heavy throttle I would describe, and looser at idle cruising. (people take descriptions completely different)
Also any notable change in mpg or performance? Anytime someone adds exhaust things always seem faster with sound. Or it may be faster, but i doubt it. MPG same. at times its worse cause you like to punch it and hear the throttle, especially when a 7 yr old boy wants to hear it alot lol..