Black Bear Tune!!!

[THE YETI]

Had a TVS1900 on my daily driver. Didn't really see any huge fuel deficiencies.

 

[JennaBear]

You didn't do burnouts at every stoplight?!?!

 

[jdpber]

Right foot is the biggest fuel economy effect on any vehicle.

 

[THE YETI]

You didn't do burnouts at every stoplight?!?!

Noooo. I babied my rides.

 

[yOGi420]

Does the tune effect the smog results in a way that would cause issues?

 

[JennaBear]

If you pass smog prior to the tune, you should pass with the tune.

Sent from a jelly bean.

 

[yOGi420]

That's what I wanted to know. It does not drastically change your emission numbers, then.

 

[JennaBear]

In many cases it improves them.

Sent from a jelly bean.

 

[yOGi420]

So it improves performance, mpg, and emissions, then why does gm not tune them accordingly out of the factory? Geeze!

 

[Stresst]

So it improves performance, mpg, and emissions, then why does gm not tune them accordingly out of the factory? Geeze!

Because every engine from an ATV to a 150K Mercedes is "de-tuned" from the factory.