[RobZL1]

Originally Posted by 2023_ZL1-AUTO

It might not be CAT warm up. But, I know when I licensed my CCM, HP Tuners gave me a new group I didn't have before, "Exhaust". If I remember, I had to go to tools or help menu while connected to my car OBDII port and license, but also had to download parameters or something like that.

Yep. That's the exhaust valve control tables for stealth, tour, sport, track.

[Megahurtz]

Originally Posted by 2023_ZL1-AUTO

It might not be CAT warm up. But, I know when I licensed my CCM, HP Tuners gave me a new group I didn't have before, "Exhaust". If I remember, I had to go to tools or help menu while connected to my car OBDII port and license, but also had to download parameters or something like that.

Cat warmup (cold start) doesn't have anything to do with the Exhaust settings. All cars have cat warmup cold starts due to emissions requirements from the government.

[Standard]

It sounds like one or more people on here have tuners.

1. The throttle map isn't just the 1:1, it's clear that snow puts a delay on throttle swings, and that tour and sport part 'hold' throttle on an M6 when you get off the gas and engine brake, I presume to get rid of backfire (it's unnerving when you notice it)
2. What is the name of this behavior? Is it some flag? Or is it some extra numbers in the throttle map where I'm just observing part of a spectrum? (like the gear/rpm/exhaust grid)?

I ask because, I could see if I were ever deciding to go to tuning, I'd be inclined to keep Tour/Sport quiet; but to un-screw up the throttle behavior.

[2023_ZL1-AUTO]

Originally Posted by Standard

It sounds like one or more people on here have tuners.

1. The throttle map isn't just the 1:1, it's clear that snow puts a delay on throttle swings, and that tour and sport part 'hold' throttle on an M6 when you get off the gas and engine brake, I presume to get rid of backfire (it's unnerving when you notice it)
2. What is the name of this behavior? Is it some flag? Or is it some extra numbers in the throttle map where I'm just observing part of a spectrum? (like the gear/rpm/exhaust grid)?

I ask because, I could see if I were ever deciding to go to tuning, I'd be inclined to keep Tour/Sport quiet; but to un-screw up the throttle behavior.

This is 100% personal opinion, I know everyone likes what they like. But for me, the "After firing" or "backfiring", what ever it's called when your decel'ing from WOT. I do not like it! If I were in a Fast & Furious movie driving around at 10,000RPM in my car, I'd probably want more of it. But, since I'm not, when the Snap-Crackle & Popping happens. IMHO, for me at least, it takes away from my build and some what diminishes it. I feel the built in Snap-Crackle & Pop doesn't represent that true American muscle car sound. In other words, I HATE the Snap-Crackle & Pop on decel !!

[Megahurtz]

Originally Posted by Standard

It sounds like one or more people on here have tuners.

1. The throttle map isn't just the 1:1, it's clear that snow puts a delay on throttle swings, and that tour and sport part 'hold' throttle on an M6 when you get off the gas and engine brake, I presume to get rid of backfire (it's unnerving when you notice it)
2. What is the name of this behavior? Is it some flag? Or is it some extra numbers in the throttle map where I'm just observing part of a spectrum? (like the gear/rpm/exhaust grid)?

I ask because, I could see if I were ever deciding to go to tuning, I'd be inclined to keep Tour/Sport quiet; but to un-screw up the throttle behavior.

That's called Rev Match. You can turn it on/off with the paddles on your steering wheel. It holds the throttle on down shifts.

[radz28]

Originally Posted by Megahurtz

Cat warmup (cold start) doesn't have anything to do with the Exhaust settings. All cars have cat warmup cold starts due to emissions requirements from the government.

Raising that cat warmup temperature helps to get rid of that timing retard and not rasp as much, right? I think my first tuner changed that, but I put it back, lol. They, HPTuners quietly removed that tab. Stupid EPA...

[RobZL1]

Originally Posted by Megahurtz

That's called Rev Match. You can turn it on/off with the paddles on your steering wheel. It holds the throttle on down shifts.

I understand what he's talking about. It feels like more negative torque in the DD when you let off the throttle, but it's not. I set all of my DD tables the same, and you can feel a difference in track vs sport/tour. It's a more rapid throttle closure.

I think it's probably one of the UDP tables that Huggins likes to use.