5.3 Tune/Fuel Economy - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71chevswb · 05-18-2016, 02:22 AM

Looking at a 2003 GMC 1500 rcsb with a 5.3, 3.73 gears, 2wd.... Looking to maximize fuel economy and wondering the best way to accomplish this.

I'm really interested in tunes, is there a system to hook up a computer and do a custom tune and adjust it personally?

What are the best brands of custom/pre-made tunes for fuel economy? I am a noob to LS motors and their technology but want to learn more.

Any suggestions are appreciated and welcomed.

05-18-2016, 02:22 AM	#1
71chevswb Registered User Join Date: Oct 2011 Location: NorthWest Posts: 134	5.3 Tune/Fuel Economy Looking at a 2003 GMC 1500 rcsb with a 5.3, 3.73 gears, 2wd.... Looking to maximize fuel economy and wondering the best way to accomplish this. I'm really interested in tunes, is there a system to hook up a computer and do a custom tune and adjust it personally? What are the best brands of custom/pre-made tunes for fuel economy? I am a noob to LS motors and their technology but want to learn more. Any suggestions are appreciated and welcomed.



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