I still don't think you know what you have or what you are selling. Do yourself a favor and google / image search a stock a90 supra catalytic converter. Then take a look at what you have. In corvette speak; you're saying you have a 2002 z06 for sale, but the pictures are a base model with foose...
I’ve never had the pleasure of hearing the mythical rock betwixt caliper and heat shield. Thought I blew the car up it was so loud and heinous. Pulled the wheel and found this little fucker wedged in there.
Stop ordering shit that a company here buys for hundreds of dollars from Alibaba and turns around to sell to you, for thousands. Either go to Alibaba yourself or buy something like AWE or Borla (USA) or HKS (Japan)
OP had an actual issue which most of us (myself included) wouldn't have caught. This isnt another 'which oil' 'the M2 is better' thread. This called for some real help
Let us know how it goes mate, they need to make this right for you. Aside from some good photos here, there is plenty of evidence on why they need to fix this for you.
Bought quick jacks. Don’t fit under car. Comes with a large and small pad. Small pad won’t clear. Anyone buy the low profile ones?? Only on Whiteline springs. Not super low - it’s barely hitting by like 1/8”