the toyo ra1 tires had finally been worn down enough that they were a bit sketchy in even small amounts of rain, and the inside of the front drivers side tire had worn down to the cords.
swapped them out for my old set of bbs ch wheels with toyo t1r tires which have plenty of tread left.
also replaced cabin air filter.
after bringing in my car on 2006-11-20 to have another faulty o2 sensor (bank 1, sensor 2) replaced, i was told the part was not in stock and i would have to bring the car back. i did so on 2006-12-11 once the part had arrived and waited what was supposed to be an hour and a half for the sensor to be replaced. after 3 hours, i was told that the sensor had been replaced but the fault was still there, so they had to swap out the wiring. i was given a loaner car and then told that after the wiring had been replaced, the fault was still there, so the second rear o2 sensor would also be replaced, which again, was not in stock. everything was finally fixed and working again on 2006-12-13.
removed catalytic converter and installed a supersprint y-pipe. the supersprint pipe comes shorter than the cat for some reason, so an extension had to be welded on to mate with the rest of the exhaust. the eip cat-back exhaust was removed due to the excessive noise when combined with the test-pipe.
installed ecs 2mm wheel spacers on the front wheels to give additional clearance between the wheel spokes and caliper face during maximum heat expansion and flex, as well as between the inner edge of the rim and the strut body. although i have not experienced any clearance issues in the ~4000 miles since installing the stoptech brake kit with the current wheels and suspension, the spacers give the 2mm of clearance recommended by stoptech without negatively impacting the suspension/wheel setup.
recoded instrument cluster with prodiag from 15230 to 13430 to disable annoying seatbelt warning (yes, i always wear my seatbelt) as well as the warning when the door is open with the key in. recoded central convenience module from 00064 to 00065 for one-click unlocking on the remote. toggled channels 3 and 4 in the adaptation for this module to auto-lock doors when the car moves and auto-unlock when the key is removed from the ignition. also hard-wired my valentine one with remote display that was pulled from my a4.