This is the XP series (T409, with lifetime warranty). I paid $550 NIB shipped on eBay (through a best offer). This is the dual split rear exhaust (with the turnouts in behind each rear wheel). To me this is the right look for the Tundra. Duals under the rear bumpers just look a bit off on this truck in my honest opinion.
Installed this setup last night in about 45 minutes. Stock exhaust took 10 minutes to remove.
The MBRP kit was packaged well, and fit finish was great.
Very easy to install. All parts fit well, and required no modifications.
Includes very nice SS band style clamps. Zero leaks from this. Gorgeous polished mufflers. Each side uses its own muffler.
Initial driving impressions (I have about 5 miles on it so far).
Idle: Louder than stock, very deep, nice subtle "gurgle".
City driving: Very deep, nice rumble, you can definitely hear it in the cab, but not enough to drown out the radio or phone coversation. Drones a bit at about 1800rpm.
WOT: WOW, this sounds incredible. One of the coolest V8 exhaust notes I have ever heard. People will turn their heads and look. For sure!
Freeway: Seems very quiet until you accelerate, then you can hear the exhaust note. Little to no drone. Cruise set at 70mph and life was good.
. Taking the boat out on Saturday so I'll have more to report. I'd expect to hear it more as the engine will be loaded up a bit more under normal driving conditions.
Awesome bang for buck.