Stealth Mode

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Jan 10, 2020 | 09:45 AM

Hydrohobo

Thread Starter

Cruising

Joined: Jan 2020

Posts: 12

Likes: 3

From: Imperial Valley, California

Stealth Mode

What is the difference of stealth mode and tour mode on the exhaust/performance if any?

John

Jan 10, 2020 | 12:05 PM

Maxpowers

Le Mans Master

Joined: Aug 2015

Posts: 6,884

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From: Toronto

Stealth is obviously quieter. The power difference is negligible.

Jan 10, 2020 | 12:16 PM

Bill Dearborn

Tech Contributor

Joined: Oct 1999

Posts: 40,995

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From: Charlotte, NC (formerly Endicott, NY)

In Tour Mode the muffler valves will open under certain conditions. In Stealth Mode they will not open unless the driver is operating the engine at full power and high rpms. That is why owners that track their cars on tracks that have noise limits can't just use Stealth mode. Under full power those valves open. Winging the throttle in neutral in the parking lot doesn't produce enough power to open the valves even if you go wide open throttle. It takes less than 5 HP to spin the engine to high rpms in neutral.

Bill

Jan 10, 2020 | 02:26 PM

2ndvett01

Racer

Joined: Jul 2016

Posts: 286

Likes: 11

From: FL

Where do you access stealth mode?

Jan 10, 2020 | 03:13 PM

Hydrohobo

Thread Starter

Cruising

Joined: Jan 2020

Posts: 12

Likes: 3

From: Imperial Valley, California

Under “Settings” on the console screen, then driving mode- engine sound management

Jan 10, 2020 | 03:14 PM

Hydrohobo

Thread Starter

Cruising

Joined: Jan 2020

Posts: 12

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From: Imperial Valley, California

Thanks Bill

Jan 10, 2020 | 03:53 PM

2ndvett01

Racer

Joined: Jul 2016

Posts: 286

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From: FL

Thanks Hydrohobo

Jan 10, 2020 | 03:53 PM

JMII

Safety Car

Joined: Jul 2018

Posts: 4,303

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From: Margate, FL

Quote:

Originally Posted by 2ndvett01

Where do you access stealth mode?

The early model year C7's don't have stealth mode. For example my 2014 only has AUTO or OFF under Engine Sound Management despite having the NPP system.