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2015 Silverado LS 5.3l exhaust upgrade

2003Cobra

By 2003Cobra
in Troubleshooting & Recalls

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2003Cobra New Member

2003Cobra

Posted
Posted

Any recommendations for aftermarket exhaust for the 5.3l that has the best fuel economy? Also any other suggestions for easy upgrades to increase fuel economy?

Thanks, Sam

  • 2 weeks later...
redwngr Senior Enthusiast

redwngr

Posted
Posted

Drive smoothly, anticipate traffic and reduce speed. Pretend there is an egg between your foot and the skinny pedal.

 

Set the screen to fuel economy and work to try and beat you previous 'best' numbers.

 

Hate to say it, but as important as fuel economy rating is to the manufacturers, if it was as easy an exhaust mod, it would already have been done.

 

If fuel cost is an issue, the other way to save is to combine/plan trips to minimize the number of miles that are driven.

topshelfproducts Enthusiast

topshelfproducts

Posted
Posted

 

Swapped in a flowmaster and deleted the resonator for under $100 at a local exhaust shop, love the sound, my smartphone mic does it no justice but it sounds deep and no annoying inside cab drone.

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