On moderate to heavy throttle [have yet to go WOT], I hear a whooshing and ringing note from the exhaust. Reminds me of the older GM vehicles with the dual-walled exhausts when the inner collapsed - sucked the life out of the motor and made the same whooshing sound. Power seems to be good - very good as a matter of fact - sweet high-winding cammer this 4.7 is so the issue is definitely not a lack of power or acceleration. This sound is really annoying however and not at all related to the mild V8-rumble heard at idle. Does this sound familiar to any of you Tundra owners? What do your trucks sound like when you pushing the go pedal just a bit?
04 Tundra AC V8 - 1700 miles or so - so far so good with a few minor warranty items to be resolved. Coming from an 02 Taco Dbl-cab 4x4 TRD P/U, the ride, power, room etc. are a real pleasure [or I'm just getting old and appreciate the creature comforts much more].