Sometimes shops throw out a āwe donāt really want to do it, but give us an amount we canāt refuse and we will.ā Thatās what this sounds like to me. $500-800 is probably more in line with quotes if you shop around. Or buy all the tools yourself, learn about the car and you get to keep the tools.
In reading the thread from the people who sourced the spoiler in Australia, the dealer was outsourcing the painting and stated it did not arrive from the factory painted. I donāt believe a painted OEM version exists yet.
Any Mach 1 will not be OK in the snow with the stock tires. No way I would try PS4s to handle snow - rain, yes, snow, no way unless it was a light dusting at best.
I won't wade into the "should you," "should not" debate; however, your advisor is 100% incorrect about voiding your warranty. There were specific consumer protection laws passed to enable individuals and other repair shops outside of the dealership to perform repairs. Look up Magnuson Moss and...
I would start by pulling the wheel off and inspecting the brakes. Could be they are sticking slightly. Canāt really help you on the first unless that caliper is sticking and somehow releasing when you are revving.
This would already be on my car if I knew the stupid check engine light wouldnāt come on. Little risky chancing it - seems like a 50/50 proposition that O2 extenders work and it is such a pain to install and then have to remove.