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Old 09-10-2017, 01:15 PM   #8
Megahurtz
Snackbar Tuning
 
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Drives: 2023 SGM ZL1
Join Date: Oct 2016
Location: Florida
Posts: 1,521
Quote:
Originally Posted by crankaholic View Post
Stealth is the only mode that keeps the valves closed at startup. You're right, all other modes leave them open. You do have to go into stealth mode before turning the car off, I haven't found a way to change modes after the car has been turned off... that's annoying to be honest.
Hold the start button for 5 seconds without putting your foot on the brake. The car will not start but all the electronics will turn on. You can then navigate into the Engine Sound Management and put it on Stealth. Then just put foot on brake and press start again to start the car in stealth mode.
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