Very interested in turbo's

[Zigger21]

I have a 2004 Yukon XL Denali and I was going to install a twin Turbo Bolt on kit and I was wondering would dual turbo's help MPG if I drive Speed limit and drive smart on a trip with out kicking it down to pass anyone. I would be Driving MS. Daisy Also if I just kick it down every once and awhile will it hurt my 6.0L LS motor

 

[Zigger21]

I have a Diablo Sport to tune it once I get it in to make sure I have a modest tune for travel. Does anyone know or tries to get good gas mpg

 

[hoe]

Get it. It should be better mpg outside of boost if your foot stays out of it. I don't see it hurting your engine unless it's setup for over 800hp daily. Key part of longevity is the tune. So go ahead and scrap that Diablo now. Get a custom dyno tune for it!

 

[Zigger21]

So How do I change the tunes from a modest driving for driving 300 miles on the way home with a Dyno Tune? Wouldn't the Diablo be able to change tunes with a push of a button from power tune to modest tune. Plus I dont have a car trailer to get it to a Dyno that is 100 miles away. Can I drive modestly to the Dyno or would it be better to trailer it up there?