i just got my trd exhaust last night for my GT and it was everything people said it was. they said it was quiet. it was (which i wanted). only after hitting 3-3.5 X 1000 rps does it give a loud growl. it said it gave a NICE deep 'growl'. it did. they say it gives a lot in terms of hp. i felt it, it was a big diffrence especially with my injen intake in there which now sounds louder (which sounds cool). for 420 bucks plus 37 for install it was the best thing i got for my car. sorry to all those people who wanted to buy mine but i was just havn' too much fun last night.
thanks toney and to all who have answered my stupid questions.
but big thanks to KIM who hooked me up with the best trd exhaust deal in so. cal.
thanks to everyone else who put up with me