Quote:
Originally Posted by jollymon
In my experience (2SS 1LE), even shutting down in "stealth" still results in next cold start with NPP valves open. = neighbors hating
What am I missing?
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Unfortunately, stealth mode is not remembered across restarts. If you want to start the engine with the exhaust in this mode, you need to first turn the car on in accessory (or service) mode by pushing the button without holding the brake/clutch pedal, then switch the exhaust to stealth mode in the infotainment, and then start the engine.
If fast catalyst warmup is enabled in the tune (it is by default), you will still have a little bark in the first half second or so, but then the exhaust will immediately quiet down. I personally haven't seen a Camaro with this changed or turned off, so I don't know if it's actually possible to have a fully quiet cold start.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq
Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle Terminator cam | LT4 FS & injectors | TSP forged pistons & rods
JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune
1100 - 1/30/18 | 2000 - 1/31/18
3000 - 2/06/18 TPW 2/26/18
3400 - 2/19/18 | 3800 - 2/26/18
4300 - 2/27/18 | 4B00 - 3/01/18
4200 - 3/05/18 | 4800 - 3/14/18
5000 - 3/16/18 | 6000 - 3/19/18