the autowatch alarms come with turbo timer option inbuilt depending on what model your best bet is to speak to an autowatch installer to explain how to turbo off or adjust the time of it
the sound your hearing is most probably your tyre rubbing against the plastic inner guard when weight is transferred to one side under full lock
WOWWW amazing GTR mate ive been looking for a s3 for over a year now and have not been able to find a super clean example like yours. may i ask where did you find that beauty?
Ive had a s/s x-force 3 into 3.5" turbo back exhaust on my 33 for almost 3 yrs now and have had no problems, no discoloration at all, sounds good, no drone and managed to get it for $900 back then new, good value for money