Hey Dr. Nick,
I have two sets one with about 1200 miles with original Michelins and no sensors.
$1000
The other set was bagged up and stored with about 100 miles on them with sensors.
$1300
Great build, on my first supra i went with AA catted definitely adds some noise (nothing major) and GREAT quality.
On this supra i went with armytryx catless, GREAT sound and with the Simulator no CEL.
knock on wood it's only been on for 1500 mi. BUT I PUSH THE CAR EVERYTIME I DRIVE IT LOL...